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Home > products > HSS Drill Bits > roll forged HRC 61 DIN338 HSS Cobalt Twist Drill Bits

roll forged HRC 61 DIN338 HSS Cobalt Twist Drill Bits

Product Details

Place of Origin: JIANG SU CHINA

Brand Name: Starry

Certification: ISO9000

Model Number: 8mm

Payment & Shipping Terms

Minimum Order Quantity: 300Pcs

Packaging Details: plastic box,pvc bags,Single piece with blister card package

Delivery Time: 30-45days

Payment Terms: T/T, L/C

Supply Ability: 3000000pcs per mouth

Get Best Price
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Cobalt Twist Drill Bits

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HSS Twist Drill Bits

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HRC 61 Twist Drill Bits

Product Name:
HSS Cobalt Twist Drill Bits
Material:
Hss-4341
Standard:
DIN338
Process:
Full Ground
Hardness:
HRC 62 - 65
Surface Finished:
Black
Application:
Stainless Steel, Copper
Product Name:
HSS Cobalt Twist Drill Bits
Material:
Hss-4341
Standard:
DIN338
Process:
Full Ground
Hardness:
HRC 62 - 65
Surface Finished:
Black
Application:
Stainless Steel, Copper
roll forged HRC 61 DIN338 HSS Cobalt Twist Drill Bits

Black Full Ground HRC 61 - 66 DIN338 HSS Cobalt Twist Drill Bits

 

High Speed Steel Step Drill Bit  Description:

 

Manufactured from Hss-4341  steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67 with 5% Cobalt, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit. No center punch is needed—the 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander" Extremely heat resistant; must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering,

 

  1. Ground point drill bits suitable for ferrous and non-ferrous metals, offering good drilling speeds and extended working life.
  2. Fast, accurate drilling.
  3. Application: Steel, Cast iron, Aluminium, Malleable Cast iron, Brass, Copper
  4.  drill bit  with 118° split point tip and optimised flutes offers fast drilling speeds in a contractors, low cost option.

 

 

Detail:

 

Item Name: High Speed Steel Twist Drill Bit
Material

hss-4341

Shank Straight shank
Process Full ground
Surface finished Black
Hardness

 

HRC 61 - 66

Color  
Size 8.0mm

Flute Type

 

N

 

Total Length

125mm

 

Flute Length

81mm

 

Usage Drilling Through Sheet Metal
Customize Accepted

 

 

hss-4341​ hss drill bit List :

 

 

 

Hss  drill bits  Application

 

It fit for standard drill chucks and regular round collet chucks Manufactured with all kinds of drill bit for metal,
such as HSS Twist Drill, HSS Center Drill Bit, HSS Step Drill Bits, Reduced Shank Drill Bit, Taper Shank Drill Bits, and etc.

Made into HSS Twist Drill Bits; HSS Step Drill Bit; Taper Shank Drill Bits; Reduced Shank Drill Bits; Bi-metal Hole Saws.