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DIN338 Twist Drill Bits HSS-R HSS-G HSS Cobalt

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Hangzhou GSR-Threads Tools Co., Ltd

China

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Contact Person Terrence Teng

Hangzhou, Zhejiang

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Product Specification

Product Description

DIN**8 Twist Drill Bits HSS-R HSS-G HSS Cobalt

Short twist drills have a rank angle (sometimes referred to as angle of twist) of *7°, a point angle between **8° and **5° as well as a cylindrical shank. Type N is suitable for standard chipping materials. A distinction is made between roll forged and fully ground twist drills, depending on the production process.

When producing roll forged drills, the slugs are heated and formed into spiral coils. Fully ground drills get their spiral coil cut while being fully hardened. For a better distinction between the diff erent types of twist drills, the following finishes are assigned to the different drills:

Standard DIN**8

Form Type N

Material HSS-R/HSS-G/HSS-E

Tolerance H9/H8

HRC ****6

Surface Bright/Black/Golden

Point Angle **8° for HSS Rolled Drill Bits

**5° Split Point for HSS-G/HSSE from 3.0mm

Helix Angle ****0°

Cutting Direction Right

Country:	China
Model No:	-
FOB Price:	(Negotiable) Get Latest Price
Place of Origin:	China
Price for Minimum Order:	-
Minimum Order Quantity:	-
Packaging Detail:	-
Delivery Time:	-
Supplying Ability:	-
Payment Type:	T/T, L/C
Product Group :	-