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  3. 5% Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS) for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood, M35 Hss Heavy Duty Twist Steel Drill Bits Index.
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5% Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS) for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood, M35 Hss Heavy Duty Twist Steel Drill Bits Index.

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  • 【Premium 5% Cobalt Steel with 68 HRC】 This Fully Ground Cobalt Drill Bits Set are Made with 5% Ture Cobalt. Although the Cost and Price are Slightly Higher, With a Useful Life,Heat,Wear and Chip Resistance up to 3 Times Longer than the Average Product.
  • 【3X Efficiency + 3X Tool Life】This Cobalt HSS Drill Bits Set is Typically Capable of Running 3 Times Faster. Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
  • 【Split Point Design with Unparalleled Precision】This Heavy Duty Work Drill Bits Kit is Suitable for Steel, Stainless Steel, Cold Rolled Steel, Hard Metals, Aluminum Alloy, Hard Wood, and Plastic, and Drilling Out Bolts Studs and Screws.
  • 【Sturdy and Durable Metal Case】Different from the General Metal Case, This Drill Bits Case is Made of Q235 Cold Rolled Steel Plate, which Can be Opened and Closed Smoothly to Take the Drill Bits out at Any Time.
  • 【21 Pieces Jobber Length Industrial Drill Bits Includes】: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 [DIA 1/64 Inch Increments]

$ 48,52 48.52 USD $ 48,52

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($ 48,52 / Units)
  • Fabricantes
  • Cuenta de unidad
  • Recomendación sobre la superficie
  • Diámetro de corte
  • Estilo de punto
  • Tipo de Shank
  • Tipo de fluido de la herramienta
  • Marca
  • UPC
  • Cortar la cuerda del ángulo
  • Número de piezas
  • Material
  • Tipo de acabado
  • Peso del artículo
  • Número de paquetes
  • Nombre
  • Número de la parte
  • Tipo de material
  • Número de fluidos
  • Tipos de acabado
  • Tipo de producto
  • Diámetro mínimo de bore

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Why Choose Premium STROTON Cobalt Drill Bits?

Researches have shown that compared with HSS without cobalt, HSS with cobalt has higher temperature resistance, red hardness, wear resistance and heat treatment response.

Red hardness, which means that the drill bits hardened steel can maintain hard at 860-880°C .

68 HRC,it means that the drill bits has 3X cutting ability and 3X durability.

This drill bits set is made of True Premium Cobalt (80,000 dollars per ton).

This drill bits set definitely have more cobalt in them than the "Cobalt" bits that HF sells--which are just Cobalt coated or only a tiny amount of cobalt tipped.

Compared with ordinary high speed steel, 5% cobalt provides better heat and wear resistance,and Hold up Better.

Split Point design tip starts drilling immediately with less force and eliminates "walking" across the work surface.

Ideal for Stainless steel,Mild Steel,Iron,Hardmetal,Aluminum,Copper,Plastic and Hardwood.

The drill bit can be used for mechanical maintenance, such as drilling out bolts and screws.

Non-vertical use may cause the drill bit to break.

Using a drill press with sufficient power will make drilling easier.

Too high speed may burn the bit tip.

Drill diameter≤3/16,RPM(1000~700)

3/16-3/8,RPM(700~350)

3/8-1/2,RPM(350~200)

Add stainless steel tapping oil or engine oil to prevent the stainless steel from overheating.

It also works adding some vinegar,soy sauce or water.

The drilling shall be started slowly by applying force slowly and gently until the drill bit starts chipping.

Product details

Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -12
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -13
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -14
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -15
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -16
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -17
Cobalt Drill Bits Set - 5% Cobalt, 21 Pieces -18

Especificaciones

Main Specification
Recomendación sobre la superficie Acero, Metal, Inoxidable
Diámetro de corte 1/8, 3/16, 1/4, 5/16, 5/64, 7/64, 5/32, 1/16, 3/32, 9/64, 7/32, 11/32, 11/64, 13/64, 15/64, 17/64, 9/32, 19/64, 21/64, 23/64, 3/8 inches See more
Material Cobalto de acero, Acero de alta velocidad (HSS), Cobalto
Fabricantes STROTON Ltd
Cuenta de unidad 1 Cuenta
Estilo de punto Punto de división
Tipo de Shank (1/16-11/64: Round Shank) (3/16-3/8: 3-Flat Shank)
Tipo de fluido de la herramienta Spiral
Marca STROTON
UPC 673498823361
Cortar la cuerda del ángulo 135 grados
Número de piezas 21
Tipo de acabado Uncoated
Peso del artículo 16 onzas
Product information
Número de paquetes 1
Nombre STROTON 5% Cobalt Drill Bit Set
Technical Details
Tipo de material Acero de alta velocidad (HSS), Cobalto de acero, Cobalto
Número de la parte M35 Co5 1/16"-3/8" (21PCS)
Número de fluidos 2
Style
Tipos de acabado Uncoated
Otros
Tipo de producto Bites de perforación de Jobber
Diámetro mínimo de bore 0,38 pulgadas
Etiquetas
Etiquetas
Bites de perforación de Jobber