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HRC 61 Conical 8mm Roll Forged Black HSS Drill Bits
HRC 61 Conical 8mm Roll Forged Black HSS Drill Bits
Specifications
Brand Name :
Starry
Model Number :
8mm
Certification :
ISO9000
Place of Origin :
JIANG SU CHINA
MOQ :
300Pcs
Payment Terms :
T/T, L/C
Supply Ability :
3000000pcs per mouth
Delivery Time :
30-45days
Packaging Details :
plastic box,pvc bags,Single piece with blister card package
Product name :
hss cconical drill bits
material :
Hss4241
Standard :
DIN338
Process :
Roll Forged
Hardness :
HRC 61 - 66
Surface finished :
Black
Application :
Carbon Steel, Cast Iron
Description

8mm Hss4241 Roll Forged Black Carbon Steel Drill Bit

Description:

Manufactured from Hss4241 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,

Hss cobalt drill bits Application

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 Saw

Detail:

Item Name: 8mm Hss4241 Roll Forged Black Carbon Steel Drill Bit
Material Hss4241
Shank Hex Shank
Process Roll Forged
Surface finished

Black
Hardness 65-67 HRC
Color
Size 8.0mm

Flute Type

Total Length

125mm
Flute Length

81mm
Usage Metal drilling, Stainless steel, carbon steel
Customize Accepted

Hss4241 Drill bits Size List :

M1.6x0.35 6h 40 8 1
M1.7x0.3 5 6h 40 8 2
M1.8x0.35 6h 40 8 3

Product tags

hss drill bits

,

tools hss-e drill bits

,

hss metal drill bit
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HRC 61 Conical 8mm Roll Forged Black HSS Drill Bits

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Product Detail
Brand Name :
Starry
Model Number :
8mm
Certification :
ISO9000
Place of Origin :
JIANG SU CHINA
MOQ :
300Pcs
Payment Terms :
T/T, L/C
Contact Supplier
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HRC 61 Conical 8mm Roll Forged Black HSS Drill Bits

Jiangsu Xingrui Tools CO.,LTD

Verified Supplier
7 Years
Since 2008
Business Type :
Manufacturer, Trading Company
Main Products :
HSS Machine Taps, HSS Hand Tap, HSS Metric Taps
Total Annual :
10000000-20000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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