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8.0mm Black DIN338 Hss4241 Roll Forged Twist Drill Bit

8.0mm Black DIN338 Hss4241 Roll Forged Twist Drill Bit

8.0mm Black DIN338 Hss4241 Roll Forged Twist Drill Bit
8.0mm Black DIN338 Hss4241 Roll Forged Twist Drill Bit

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
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Detailed Product Description
Product Name: High Speed Twist Drill Bit Material: Hss4241
Standard: DIN338 Process: Roll Forged
Hardness: HRC 61 - 66 Surface Finished: Black
Application: HSS Step Drill Bit / Reduced Shank Drill Bit
High Light:

Hss4241 Twist Drill Bit

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DIN338 Twist Drill Bit

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8.0mm Twist Drill Bit

Black Hss4241 Roll Forged High Speed Twist 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,

 

Detail:

 

Item Name:  Black Hss4241 Roll Forged High Speed Twist Drill Bit

Material

 

hss4241

Shank Hex Shank
Process Roll Forged
Surface finished black
Hardness HRC 61 - 66
Color  
Size 8.0mm

Flute Type

 

 

 

Total Length

125mm

 

Flute Length

81mm

 

Usage   HSS Step Drill Bit / Reduced Shank Drill Bit
Customize Accepted

 

 

 hss4241  Drill bits Size List :

 

 
Size Limit Overall Len Thread Len Size Code
M2.6x0.45 6h 50 9 7
M3x0.5 6h 56 11 9
M3.5x0.6 6h 56 13 10
M4x0.7 6h 63 13 11
M4.5x0.75 6h 70 16 12
M5x0.8 6h 70 16 13
M6x1 6h 80 19 14
M7x1 6h 80 19 15
M8x1.25 6h 90 22 16

 

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 Saw

 
Hss cobalt drill bits Quality

 

Quality inspection is a must before delivery based on Sutek Quality Control Documents or Customer Request Documents.
Hardness test to make sure drill bit with a good heat treatment.
Drilling test to approve our drill bit practicability.
Chemical Analysis for raw materials choice is guaranteed.
Visible Test for how to distinguish the raw materials by experiences.
Drill Bit specification should accord with DIN , ANSI/ASME standard or Tailor-made based on Technical Reference.

Contact Details
Jiangsu Xingrui Tools CO.,LTD

Contact Person: Jerry

Tel: +86-15298489260

Send your inquiry directly to us (0 / 3000)

Contact

Address: FeiDa indutrial Park,Hou Xiang Town,DanYang City,Jiang Su Province,China.

Factory Address:FeiDa indutrial Park,Hou Xiang Town,DanYang City,Jiang Su Province,China.