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COMOWARE Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, -

COMOWARE Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16"-1/4"

Specifications: Material: HSS M35 Cobalt 5% Angle Point: 135 Degree Flute Type: Spiral Shank Type: Straight Shank   All woodworkers need this set. This 13 pieces Drill Bit Set contains the most popular range of drill bits - sizes 1/16" to 1/4"., and it comes in a portable case. And all drills can be used for cutting metal, plastic, wood, etc. HSS M35 with 5% Cobalt provides ultimate higher heat and abrasive resistance which ensures a longer service life. 
HSS M35 Cobalt Twist Drill Bits, Pack of 10 (3.2mm, -

HSS M35 Cobalt Twist Drill Bits, Pack of 10 (3.2mm, 1/8")

Specially designed for drilling in hard steel,thick web helix delivers fast material removal combined with increased durability for maximum officiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating,eliminating the need for a center punch. Product Details: Diameter:   1/8 inch Flute length: 1.42 inch Total length: 2.56 inch Material: 5% Cobalt Package: Plastic box Drilling Reference: Material: Automobile leaf spring steel plate Drilling Speed(r/min): 690 Feed rate(mm/r): 3 Drilling depth: 10mm Holes: 3
Metric M42 8% Cobalt Twist Drill Bits for Stainless Steel and Hard Metal -

Metric M42 8% Cobalt Twist Drill Bits for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Product Advantages: (1) 3 Steps desigh tip starts drilling immediately with less force and eliminates "walking" across the work surface. (2) Holds up better than generic high-speed steel,Cobalt gives high-speed steel more heat and wear resistance. (3) This drill bits set is made of Premium Cobalt (80,000 dollars per ton).(4) The Wnewtools metric cobalt drill bits can cut through Stainless steel and Hard metal,Hard wood, although they can be used for softer materials such as Aluminum,Plastic. Some Important Tips about drilling stainless steel and hard metal:     (1)Controling the drill speed from 200 to 1000 RPM would make it easier for you to drill holes on stainless steel. ________________________________                Stainless Steel                       ____________________________       Drill diameter               RPM             ____________________________       ≤5mm                       1000~700    ____________________________       5-10mm                     700~350     ____________________________       10-15mm                   350~200 ________________________________     (2)Add stainless steel tapping oil or engine oil to prevent the stainless steel from overheating and forming ...
Carbon Twist Drill Size 53, -

Carbon Twist Drill Size 53, .060"

Mascot has the most complete selection of carbon steel twist drills: 31 miniature sizes from No. 50 through No. 80. These are premium quality, German-made drills. You may order them by the dozen (packaged in a plastic vial) or individually. Twist Drill size 53 is .060" or 1.5113mm.
Carbon Twist Drill Size 74, -

Carbon Twist Drill Size 74, .023"

Mascot has the most complete selection of carbon steel twist drills: 31 miniature sizes from No. 50 through No. 80. These are premium quality, German-made drills. You may order them by the dozen (packaged in a plastic vial) or individually. Twist Drill size 74 is .023" or 0.5715mm.
WoodRiver 100-Piece Combo Brad Point and Twist Drill Bit -

WoodRiver 100-Piece Combo Brad Point and Twist Drill Bit Box

This WoodRiver 100-piece drill bit set includes six to ten each of 14 sizes ranging from 1/16" to 5/16". A metal storage case with an insert to organize bits by size is included.
Gyros 45-11255 Carbon Steel Wire Gauge Drill Bit -

Gyros 45-11255 Carbon Steel Wire Gauge Drill Bit No.55

Gyros Carbon Steel Drills are flexible, extremely sharp and economically priced. They are ideal for drilling wood and plastic. These drills can be used in hand and motorized tools.
10 Mixed Tungsten Carbide Twist Drill Bits, Sizes 0.2mm to 0.6mm, 1/8

10 Mixed Tungsten Carbide Twist Drill Bits, Sizes 0.2mm to 0.6mm, 1/8" Shank, For PCB, Dremel, Jewelry, CNC, Soft Metals

10 Mixed Tungsten Carbide Twist Drill Bits, Sizes 0.2mm to 0.6mm, 1/8" Shank For PCB, Dremel, Jewelry, CNC, Soft MetalsGreat for Printed Circuit Boards, Plastics, Carbon Fiber, Fiberglass, Wood, Soft Metals, Stainless Steel etc..Set Includes:2 - 0.2mm diameter Tungsten Carbide Drill Bits, Cutting Length: 3.5mm2 - 0.3mm Diameter Tungsten Carbide Drill Bits, Cutting Length: 5.5mm2 - 0.4mm Diameter Tungsten Carbide Drill Bits, Cutting Length: 7.0mm2 - 0.5mm Diameter Tungsten Carbide Drill Bits, Cutting Length: 8.5mm2 - 0.6mm Diameter Tungsten Carbide Drill Bits, Cutting Length: 9.5mmShank diameter: 3.175mm (1/8"), Total length: 38mm (1.5")10 pcs Set in a Protective PVC Case For CNC machines and Handheld tools.These long-lasting bits are made from high quality ultrafine micrograin tungsten steel for precision machining and accurate drilling.High cutting performance, high wear resistance.These micro drills have sharp cutting edges, reduced cutting force, lower breaking points and improve the quality of the hole wall
Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless Steel and Cast -

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless Steel and Cast Iron

M35 Grade Cobalt Steel Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant. 135 Degree Split Point The flater the drill, the smaller the chip width. This means less force required to remove metal, compared with lower angles like 90° and 118°. This is important on hard stuff, because your power requirements are already more than mild steel, so making the chip load less helps. It also reduces heat since less surface area is generating the cut. Lowest Cost Per Hole Drilled Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled. For Drilling Stainless Steel This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds. Not for Hardened Steel M35 grade cobalt...
Migiwata 1/4 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 10pcs - Jobber Length and Straight Shank - Extremely Heat Resistant - Suitable for Drilling in Stainless -

Migiwata 1/4 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 10pcs - Jobber Length and Straight Shank - Extremely Heat Resistant - Suitable for Drilling in Stainless Steel and Iron

OVERVIEW Different types of drill bits are used to cut holes in different types of materials. This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit. Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds. Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled. NOTICE: Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage. This set M35 grade cobalt drill bits are not suitable for hardened steel / high carbon steel. TECHN...
EEEKit Precision Pin Vise Hobby Drill Mini Micro Hand Twist Drill Bits Set Holes Drilling Rotary Tools Kit, 0.5-3mm, Set of - Carbon Twist Drill
Carbon Twist Drill

EEEKit Precision Pin Vise Hobby Drill Mini Micro Hand Twist Drill Bits Set Holes Drilling Rotary Tools Kit, 0.5-3mm, Set of 25

11Pcs Precision Pin Vise Mini Micro Hand Twist Drill Bits Set Rotary Tools - Carbon Twist Drill
Carbon Twist Drill

11Pcs Precision Pin Vise Mini Micro Hand Twist Drill Bits Set Rotary Tools Kit

Tiny Micro Pin Vise Hand Drill with HSS Micro HSS Twist Drill Bit Set 0.2-2.0mm Plastic Case Set of 21, Suitable for Woodworking Drilling, Electronics - Carbon Twist Drill
Carbon Twist Drill

Tiny Micro Pin Vise Hand Drill with HSS Micro HSS Twist Drill Bit Set 0.2-2.0mm Plastic Case Set of 21, Suitable for Woodworking Drilling, Electronics Repair

11-in-1 Precision Pin Vise 3-jaw steel chuck Hand Drill with 10-pack Twist Bits for Electronic Assembling, Tool-making, Model - Carbon Twist Drill
Carbon Twist Drill

11-in-1 Precision Pin Vise 3-jaw steel chuck Hand Drill with 10-pack Twist Bits for Electronic Assembling, Tool-making, Model making

25 Pcs Precision Pin Vise Hobby Drill Mini Micro Hand Twist Drill Bits - Carbon Twist Drill
Carbon Twist Drill

25 Pcs Precision Pin Vise Hobby Drill Mini Micro Hand Twist Drill Bits Set

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How It's Made Drill Bits

Carbon Twist Drill

How It's Made Drill Bits https://youtu.be/yYgQ8q6EOy4 How twist drill bits are made? High-speed steel (HSS) is a form of tool steel; HSS bits are hard and much more resistant to heat than high-carbon steel. They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon-steel bits, and have largely replaced carbon steels. How do drill bit work? ocated at the tip of the drillstring, below the drill collar and the drill pipe, the drill bit is a rotati...

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