Best 23 Hss Drills for 2020

 

ABN Coated Titanium Drill Bit Set 29pc Drill Bits for Metal Plastic Wood Drill Bits - High Speed HSS Drill Bit Set

ABN Coated Titanium Drill Bit Set, 29pc Drill Bits for Metal, Plastic, Wood Drill Bits – High Speed HSS Drill Bit Set

ABN Coated Titanium Drill Bit Set, 29pc Drill Bits for Metal, Plastic, Wood Drill Bits – High Speed HSS Drill Bit Set - Use your power drill includes angled tip and 3/8-inch drive on shank to use with your existing drill. Built to last constructed from high speed steel (hss) that is coated with titanium for a smooth drilling experience that prevents dulling from overheating for extended performance bits reduce drag, heat, and friction for a longer cordless drill life (drill not included) we recommend using cutting lubricant to extend the life of these drill bits (lubricant not included). Easy storage heavy-duty 43″ x 73″ x 2″ inch (109cm x 185cm x 51cm) metal index box keeps the drill bits organized so they are easy to find when you need them most simply flip the tab up and lift to open labeled compartments for quick identification and simple organization. Make smoothly cut holes use the abn metal drill bits for steel for smooth cutting on plastic, wood, and most metal this drill bit set for metal prevents walking and creates sharp, clean cuts while running cooler, drilling smoother, and lasting longer than standard bits. Various applications package includes (29) wood bits sizes 1/16-inch through 1/2-inch incrementing by 1/64-inch for drilling or cutting wood, metal, plastic, and similar materials sizes include 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″, 17/64″, 9/32″, 19/64″, 5/16″, 21/64″, 11/32″, 23/64″, 3/8″, 25/64″, 13/32″, 27/64″, 7/16″, 29/64″, 15/32″, 31/64″, 1/2″.

 

5 PCs Tooth Cutter Drill Bit HSS Drill Bit Hole Saw Set for Wood Metal Stainless Steel Aluminum Laminates 16mm185mm20

5 PCs Tooth Cutter Drill Bit HSS Drill Bit Hole Saw Set for Wood Metal Stainless Steel Aluminum Laminates 16mm/18.5mm/20

5 PCs Tooth Cutter Drill Bit HSS Drill Bit Hole Saw Set for Wood Metal Stainless Steel Aluminum Laminates 16mm/18.5mm/20 - Functionperfect for installing locks, knobs in doors and cabinets or drilling larger diameter holes through desks etc. Fitcuts quickly, precise holes in steel, stainless steel,iron, copper, brass, aluminum, fiberglass, formica and other laminates in seconds. About uswe are a professional sellers of all kinds of tools,we only sell tools,and promise the quality of our products. Size 16mm/062″ , 185mm/072″ , 20mm/078″ , 25mm/098″ , 30mm/118″. Package5 x different size hole saw, 5 x wrench.

 

VonHaus 100-Piece Drill and Drive Bit Set with Titanium Coated HSS Bits and Storage Case for Drilling Metal Wood Masonry and Plastic

VonHaus 100-Piece Drill and Drive Bit Set with Titanium Coated HSS Bits and Storage Case for Drilling Metal, Wood, Masonry and Plastic

VonHaus 100-Piece Drill and Drive Bit Set with Titanium Coated HSS Bits and Storage Case for Drilling Metal, Wood, Masonry and Plastic - Confidently take on metal, masonry and woodwork jobs with the comprehensive vonhaus 100pc drill bit set, comes with drill bits, screwdriver bits, nut drivers and more. All-in-one kit includes 14 x titanium plated hss drill bits, 9 x wood drill bits, 3 x wood spade drill bits, 4 x hole saws, 1 x magnetic bit holder and 9 x masonry drill bits the set also contains 52 x chrome vanadium steel driver bits including slotted, phillips, pozi, star, hex and square drive. Choose from a selection of bits in the most frequently used sizes, from 1/16 to 3/4″, includes specialist accessories, such as hole saws, a countersink and wood flat drill bits. Comes in a durable, portable storage case with moulded placeholders to keep all your items organised and in place. Ideal for diy projects and household maintenance and repair, each bit is color-coded for easy identification.

 

Commando Precision Drill Set and Blue Anodized Pro Series Handle with 12 HSS Drills ScribeAwl Punch All Stored Inside Handle

Commando Precision Drill Set and Blue Anodized Pro Series Handle with 12 HSS Drills, Scribe/Awl, Punch All Stored Inside Handle

Commando Precision Drill Set and Blue Anodized Pro Series Handle with 12 HSS Drills, Scribe/Awl, Punch All Stored Inside Handle - Pen size 7/16″ x 3-13/16″ with attractive 3/8″ diameter anodized aluminum body with pocket clip. Limited lifetime warranty on usa made handle & 1 yr limited warranty on tools, see warranty details. Drills, scribeawl & punch store inside handle in plastic tube with cap to help prevent spilling. Complete with 12 hss drills (1 ea even sizes #52 thru #74) + hardened scribeawl & punch. Precision steel chuck firmly holds drills or other tools from #80 (013″) thru #52 (064″) diameter.

 

Yaetek 25-PIECE Twist High Speed Steel Drill Set Drilling Bit Metal Metric Tool 1-13mm 118 Degree Split Point Angle HSS Drill Bit(25 Pcs

Yaetek 25-PIECE Twist High Speed Steel Drill Set Drilling Bit Metal Metric Tool 1-13mm, 118 Degree Split Point Angle, HSS Drill Bit(25 Pcs)

Yaetek 25-PIECE Twist High Speed Steel Drill Set Drilling Bit Metal Metric Tool 1-13mm, 118 Degree Split Point Angle, HSS Drill Bit(25 Pcs) - 5mm / 5mm / 5. 5mm / 4mm / 4. 5mm / 6mm / 6. 5mm / 3mm / 3. Product details, drill bit material hss, long, lasting working capacity, advanced 118 degree split point angle, short chisel edge for reduced drilling resistance, bits come in a heavy duty metal storage case, suitable for drilling in steel, cast iron, non ferrous metals, alloyed and non-alloyed material metric sizes 1mm / 1. 5mm / 9mm / 9. 5mm / 12mm / 12. 5mm / 11mm / 11. 5mm / 2mm / 2. 5 mm / 13mm package includes 1 x 25 piece hss twist drill bit set (metric). 5mm / 8mm / 8. 5mm / 10mm / 10. 5mm / 7mm / 7.

 

uxcell 2 Pcs 28mm HSS Drill Bit Hole Saw Stainless High Speed Steel Metal Alloy

uxcell 2 Pcs 28mm HSS Drill Bit Hole Saw Stainless High Speed Steel Metal Alloy

uxcell 2 Pcs 28mm HSS Drill Bit Hole Saw Stainless High Speed Steel Metal Alloy - High precision, smooth cutting, especially impact resistance, wear resistance. Hole drill bit is through a special heat treatment, sharp edge, high strength. 28mm hole drill bit is made of hss high speed steel. Long life durable and practical openings for stainless steel, iron, aluminum, and various types of pipes. Perfect for installing locks, knobs in doors and cabinets or drilling larger diameter holes through desks etc.

 

NORTOOLS Fractional Jobber HSS Twist Drill Bits Set 29pcs HSS Titanium Coating

NORTOOLS Fractional Jobber HSS Twist Drill Bits Set 29pcs HSS Titanium Coating

NORTOOLS Fractional Jobber HSS Twist Drill Bits Set 29pcs HSS Titanium Coating - Super performance, nortools drill is one professional oem factory for famous brand high quality drill bits is prime perfect suitable for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plas. 135° split point tip and twist design, increases cutting speed with self-centering and prevents walking, clears chips and particles faster. Includes tough case container to keep bits organized. Hss tianium coating, classic hss construction with titanium coating for capability and durability the cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean. Ansi 9411 standards, jobbers length, micro drill bits, inch size 1/16″ to 1/2″x1/64″, total 29pcs.

 

COMOK 13mm Tip Diameter HSS High Speed Steel Twist Drill Bit 12 Straight Shank Drilling Hole Tool

COMOK 13mm Tip Diameter HSS High Speed Steel Twist Drill Bit 1/2 Straight Shank Drilling Hole Tool

COMOK 13mm Tip Diameter HSS High Speed Steel Twist Drill Bit 1/2 Straight Shank Drilling Hole Tool - Excellent for drilling on both flat and curved surfaces such as stainless steel and cast iron. Sharp and twisted drill bit will make holepunching easier. Anti, oxidation coating, wear small more durable, easy maintenance. Split point tip starts on contact to keep the bit from walking for fast accurate holes.

 

strylin 2020 The New Multifunctional Electric Knife Sharpener Drill Sharpening Machine Knife Scissor Sharpener Power Household Grinding Tools for Twist Drill HSS Drill Kitchen Scissor Chisel

strylin 2020 The New Multifunctional Electric Knife Sharpener, Drill Sharpening Machine, Knife Scissor Sharpener, Power Household Grinding Tools for Twist Drill, HSS Drill, Kitchen Scissor, Chisel

strylin 2020 The New Multifunctional Electric Knife Sharpener, Drill Sharpening Machine, Knife Scissor Sharpener, Power Household Grinding Tools for Twist Drill, HSS Drill, Kitchen Scissor, Chisel - Suitable for household use, all kinds of tools to repair the mold, adjustable angle, width. Especially suitable for novice repair planers, chisels, kitchen knives, scissors, drill bits, etc. Compact design, easy to store and transport. Regrinds chisel & plane blades from 6mm to 51mm wide. Sharpen all high speed steel drill bits(from 3mm to 13mm).

 

10 PACK 316 TITANIUM COATED HSS DRILL BITS FOR WOOD METAL PLASTIC

10 PACK 3/16″ TITANIUM COATED HSS DRILL BITS FOR WOOD, METAL & PLASTIC

10 PACK 3/16″ TITANIUM COATED HSS DRILL BITS FOR WOOD, METAL & PLASTIC - Round shank fits most drill chucks. 3-1/2″ overall length with 24″ cutting flute length. Including 10 pieces of 3/16″ titanium coated high speed steel dill bit. 118 degree point drills into wood, metal and plastic. Forged and polished flutes.

 

amoolo 316 Cobalt Drill Bit10 Pcs M35 HSS Metal Drill Bit Set for Hard Metal Stainless Steel Cast Iron

amoolo 3/16″ Cobalt Drill Bit(10 Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron

amoolo 3/16″ Cobalt Drill Bit(10 Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron - 【M35 cobalt high speed steel】industry grade 6542 high speed steel drill bit set, harder than 4241 hss used in other similar drill bits set these drill bits also contain 5% cobalt, which increases wear-resistance and durability. 【Multiple application】perfectly suitable for cutting hard metal such as stainless steel, steel and cast iron as well as wood, aluminum alloy and other softer metals × not for glass or ceramic materials ×not for high carbon steel and heat-treated steel √ pay attention to speed, pressure and heat control during drilling. 【10pcs 3/16″ cobalt drill bits】10pcs, 3/16″(dia 476mm) x2-5/16″(flute length 5874mm) metal drill bitsthis drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization. 【90 days warranty】if you are not fully satisfied for any reason, please contact us for 100% refund or replacement. 【Fully ground process & 135° split point】fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance 135° split point with straight shank prevents walking and makes drilling precise and faster no center punch is needed.

 

eoocvt 6pcs 3-8mm Titanium HSS Drill Saw Bit Set Cutting Carpenter Wood Metal

eoocvt 6pcs 3-8mm Titanium HSS Drill & Saw Bit Set Cutting Carpenter Wood Metal

eoocvt 6pcs 3-8mm Titanium HSS Drill & Saw Bit Set Cutting Carpenter Wood Metal - Suitable for thin wood,metal, plastic plates pull grooving. Made use of hss high speed steel material with titanium coated, drill bits body edge sharp, faster with less effort. Brand new and high quality. Longer life and durability.

 

Hitachi 728470 14-Inch By 18-Inch Round Shank InstallerAircraft Hss Drill Bit

Hitachi 728470 1/4-Inch By 18-Inch Round Shank Installer/Aircraft Hss Drill Bit

Hitachi 728470 1/4-Inch By 18-Inch Round Shank Installer/Aircraft Hss Drill Bit - Comes with a 30-day limited warranty. Used for drilling and running wires through walls, ceilings and floors. The 1/4-inch thick hitachi 728470 has a length of 18-inch and includes a round shank helping your tool keep a tight grip while in use. Hitachi duracore products are proven to last longer and outperform the competition. Hitachi duracore treated products are manufactured utilizing a proprietary technologically superior to cryogenic treatment.

 

Topline USA Drill Bit 40 0098 HSS Bright Finish 6pcs

Topline USA Drill Bit #40 (0.098″) HSS Bright Finish 6pcs

Topline USA Drill Bit #40 (0.098″) HSS Bright Finish 6pcs - Perfect when you need more than one of the same size, or need to replace a broken bit in a set. Great for metalworking, woodworking, hobbies, crafts, beads, etc. Caution bits are sharp you can easily stab yourself always wear approved safety glasses these bits break easily. Premium quality bits. A fixture or vise is recommended no warranty for bit breakage.

 

Hitachi 728454 34-Inch By 12-Inch Round Shank InstallerAircraft Hss Drill Bit

Hitachi 728454 3/4-Inch By 12-Inch Round Shank Installer/Aircraft Hss Drill Bit

Hitachi 728454 3/4-Inch By 12-Inch Round Shank Installer/Aircraft Hss Drill Bit - Used for drilling and running wires through walls, ceilings and floors. The ¾-inch thick hitachi 728454 has a length of 12-inch and includes a round shank helping your tool keep a tight grip while in use. Comes with a 30-day limited warranty. Hitachi duracore treated products are manufactured utilizing a proprietary technologically superior to cryogenic treatment. Hitachi duracore products are proven to last longer and outperform the competition.

 

6Pcs 14 Hex Shank Screw TapM3-M10 Hss Spiral Thread Drill BitsTitanium Coated Composite Drilling Screw Tapping Bits Tool Set Kit

6Pcs 1/4″ Hex Shank Screw Tap,M3-M10 Hss Spiral Thread Drill Bits,Titanium Coated Composite Drilling Screw Tapping Bits Tool Set Kit

6Pcs 1/4″ Hex Shank Screw Tap,M3-M10 Hss Spiral Thread Drill Bits,Titanium Coated Composite Drilling Screw Tapping Bits Tool Set Kit - 【Specification】-this product consists of 6 metric taps, m3, m4, m5, m6, m8, m10, 635 mm (1/4 inch) hex shank, these taps are made from high speed steel and surface finished by nitriding for high hardness and rust resistance, used to make threads, cut or an excellent tool for forming the concave portion of a paired pair. 【Application 】-manufacturing thread, lathe, machinery. 【Jectse 】-jectse is not just a brand we deeply care about our customers and about making sure that the buyer gets what they want we love giving our customers great value and great customer service we are also here for any questions or comments, so send us a messageyou may be able to find cheaper alternatives, but don’t risk finding out why they cost less we’re confident in the quality and accuracy of these taps so we garantee a 100% “full money-back. 【High quality and reliable】-there are total 6 pieces of taps in different sizes from m3 to m10 that you can use for tapping various threadstaps are designed with spiral flutes and the chip clearing process would be better they are taps with drilling function, used to drill a hole and cut new threads at the same time, you will have a smooth tapping experience with them these taps are used on a machine to do the tapping, generally more accurate because human error is eliminated. 【description】- drill tap bits increase efficiency of operation by allowing for drilling and tapping to be accomplished in a single pass these hss drill and tap bits are great tools used to create screw threads, to cut or form the female portion of the mating pair they are used on a machine to do the tapping, such as a lathe machine tapping with these taps is faster, and generally more accurate because human error is eliminated.

 

PEAKDRILL 5Pcs Pack 516 HSS Cobalt Drill Bits Set M35 Co5 HSS Co Jobber Length Twist Drill Bit 135 Deg Split Point HSS Drill Bit for Stainless Steel Metal Copper Iron Cast IronAluminum

PEAKDRILL 5Pcs Pack 5/16″ HSS Cobalt Drill Bits Set M35 Co5% HSS Co Jobber Length Twist Drill Bit 135 Deg. Split Point HSS Drill Bit for Stainless Steel, Metal, Copper, Iron, Cast Iron,Aluminum.

PEAKDRILL 5Pcs Pack 5/16″ HSS Cobalt Drill Bits Set M35 Co5% HSS Co Jobber Length Twist Drill Bit 135 Deg. Split Point HSS Drill Bit for Stainless Steel, Metal, Copper, Iron, Cast Iron,Aluminum. - ❺ Applicationapplicable for variety of material drilling, such as stainless steel, steel, metal, iron, cast iron, copper alloy, aluminum, plastic. ❹ Surface treatemtnember finished nitrided to enable the high hardness of surface and wear-resistance to keep long tooling life. ❷ best cutting tip135 deg split point drill angle to guarantee the best self-centering and positioning and drill smooth and quicker than normal point angle. ❸ Flute figuresefficient helix flute design to keep the quickest removal of chips and debris through flute during penetration of workpiece. ❶ Premium materialhigh grade high speed steel with cobalt 5% to ensure the high hardness over hrc 64-66, and wear-resistance, abrasion-resistance, high red hardness.

 

PACK OF 10 116 TITANIUM COATED HSS DRILL BITS FOR WOOD METAL PLASTIC

PACK OF 10, 1/16″ TITANIUM COATED HSS DRILL BITS FOR WOOD, METAL & PLASTIC

PACK OF 10, 1/16″ TITANIUM COATED HSS DRILL BITS FOR WOOD, METAL & PLASTIC - Including 10 pieces of 1/16″ titanium coated high speed steel dill bit. Round shank fits most drill chucks. 118 degree point drills into wood, metal and plastic. Forged and polished flutes.

 

CO-Z Upgraded Titanium Step Drill Bit Set 5PCS 50 Sizes in 5 HSS Drill Bits for Drilling Hole on Sheet Metal Iron Wood Aluminum PVC Multiple Hole Stepped Up Unibit with Aluminum Case for DIY Lovers

CO-Z Upgraded Titanium Step Drill Bit Set, 5PCS 50 Sizes in 5 HSS Drill Bits for Drilling Hole on Sheet Metal Iron Wood Aluminum PVC, Multiple Hole Stepped Up Unibit with Aluminum Case for DIY Lovers

CO-Z Upgraded Titanium Step Drill Bit Set, 5PCS 50 Sizes in 5 HSS Drill Bits for Drilling Hole on Sheet Metal Iron Wood Aluminum PVC, Multiple Hole Stepped Up Unibit with Aluminum Case for DIY Lovers - Jam-free performance, dual-flute design and three-sided shank design is optimized for cordless drills in high speed provides greater speed and control while minimizing iron scurf flying around, to lengthen service life, please do not set drilling speed at its maximum to avoid damage to the step bit’s cutting edge. Durable & sturdy, solid high speed steel construction, close to impossible to snap compared conventional drill bits, the unique 3-sided shank step drill bits prevents slip in drill chuck and reduces shocks oiling the titanium stepped bits recommended before every use to maximize the service life. One bit for all, every stepping bit comes with 10 sizes so you can drill up to 10 holes with different diameters, saving you time and efforts to change bits, every package comes with 5 bits, that makes it 50 diameters in total. Universal compatibility, designed for drilling on metal sheets(including iron sheet, aluminium alloy sheet, excluding steel sheet) up to 008 in, acrylic, aluminum, pvc and wooden boards up to 02 in marked with obvious marks for easy and precise hole drilling, compatible with drills 1/4″,3/8″,1/2″. Aluminum case, comes nicely in a well-organized aluminum case for easy storage and transport keep all of these step drill bits well organized is really an easy project.

 

ChewSteel Tools Drill Bit Set 100-Piece Drilling and Driving Accessories Screw Drill bits Titanium Coated HSS Bits for Drilling Metal Wood Masonry and Plastic Metric

ChewSteel Tools Drill Bit Set, 100-Piece Drilling and Driving Accessories, Screw Drill bits, Titanium Coated HSS Bits for Drilling Metal, Wood, Masonry and Plastic (Metric)

ChewSteel Tools Drill Bit Set, 100-Piece Drilling and Driving Accessories, Screw Drill bits, Titanium Coated HSS Bits for Drilling Metal, Wood, Masonry and Plastic (Metric) - ※ Choose from a selection of bits in the most frequently used sizes, from 3mm to 19mm, includes specialist accessories, such as hole saws, a countersink and wood flat drill bits. ※ all-in-one kit includes 14 x titanium plated hss drill bits, 9 x wood drill bits, 3 x wood spade drill bits, 4 x hole saws, 1 x magnetic bit holder and 9 x masonry drill bits the set also contains 52 x chrome vanadium steel driver bits including slotted, phillips, pozi, star, hex and square drive. ※ Ideal for diy projects and household maintenance and repair, each bit is color-coded for easy identification. ※ Comprehensive, high quality 100pc drill bit set, made for masonry, wood, metal and plastic drilling as well as multiple screwdriving and fastening applications. ※ Comes in a durable, portable storage case with moulded placeholders to keep all your items organised and in place.

 

uxcell 2 Pcs 22mm HSS Drill Bit Hole Saw Cutter for Metal Alloy Wood

uxcell 2 Pcs 22mm HSS Drill Bit Hole Saw Cutter for Metal Alloy Wood

uxcell 2 Pcs 22mm HSS Drill Bit Hole Saw Cutter for Metal Alloy Wood - 22mm hole saw cut clean, round holes in iron, aluminum plate, alloy plate, plastic sheet. Hole saw is made of hss high speed steel, impact resistance, wear resistance. Hole saw is suitable for hand-held electric drill, vertical electric drill and mobile belt magnetic drilling machine. Hole drill bit is with special heat treatment, sharp edge, high strength. Perfect for installing locks, knobs in doors and cabinets or drilling larger diameter holes through desks etc.

 

7PCS Countersink Drill BitHSS Drill Bit Set with One Hex Key Wrench and Adjustable Woodworking Chamfering Counter Bits Carpentry Reamer Plated Perfect for Plastic Wood DIY 3-10mm

7PCS Countersink Drill Bit,HSS Drill Bit Set with One Hex Key Wrench and Adjustable Woodworking Chamfering Counter Bits Carpentry Reamer Plated Perfect for Plastic Wood DIY, 3-10mm

7PCS Countersink Drill Bit,HSS Drill Bit Set with One Hex Key Wrench and Adjustable Woodworking Chamfering Counter Bits Carpentry Reamer Plated Perfect for Plastic Wood DIY, 3-10mm - ❸☞ Flexibility, removable and adjustable it’s convenient to use the combination of hex key to adjust or disassemble the countersink drill bit and the five-flutes chamfering. ❷☞ Three point drill design the cutting flutes of the countersink drill bit is made of cnc gear grinding, the three-pointed bit is better in centering and no skid so the drilling is accurate and fast with high efficiency. ❶☞ Hss material the ultimate 2-in-1 countersink drill bits are made of high speed steel, quenching treatment, so they are high hardness, wear-resisting and durable. ❹☞ chip removal quickly the wide chip slot and the five-flutes chamfering make the operation process faster to remove the sawdust, and the chamfering is more smooth and unbroken. ❺☞ Round handle design handle is smooth without friction with the machine, and it’s suitable for power bench or hand drill driver in the most common size.

 

Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron Brass Aluminium Stainless Steel and Other Hard Materials

Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron, Brass, Aluminium, Stainless Steel and Other Hard Materials

Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron, Brass, Aluminium, Stainless Steel and Other Hard Materials - 135°split point, the 135°quick-cut split point are self-centering and able to penetrate metals quickly with less pressure, prevent bits from “walking and wanding” easy cutting without need of center punch. Cobalt steel, manufactured from m35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average hss drill bit. 15pc metric set, the set includes 15pcs of m35 cobalt steel twist drill bits 15mm, 2mm, 25mm, 3mm, 35mm, 4mm, 45mm, 5mm, 55mm, 6mm, 65mm, 7 mm, 8 mm, 9 mm, 10 mm well organized in a plastic indexed storage case for easy transport to your worksite. Downloadable user guide, we’ve summed up some tips of drilling metals, including a rpm chart for several common metals, based on our reviews and some articles on the internet in most cases, our customers would get a much better result with these tips welcome to download. For metalworking, particularly successful in cutting through hard metals(hardness less than hrc38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too not for hardened steel / high carbon steel try to adjust the rpm when it fails to penetrate.





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