KIDEA Bulk DIN338 High Speed Steel M35/M42 Titanium Drill Bits for Professional Metalworking(Assorted Sizes)

Product Description

Industrial Drill Bits Banner
Drill Bit Application
Drill Bit Measurement
Drill Bit Coating Detail
Product Specifications
Product Name Factory Direct HSS Golden Finish 10mm Titanium Coated Drill Bits for Industrial Metal Drilling
Material HSS-E Cobalt M35 HSS Co5% (Also Support M2/M42)
Size 0.5mm - 20mm (1/64'' - 5/8'')
Surface Finish Industrial TiN Coated
Point Type 135 Degree Split Point (Also have 118 Degree Regular Point, Turbo Max Point, Pilot Point)
Shank Type Straight Shank (Also have Tri-Flats Shank, Hex Shank, Double R Hex Shank, Reduced Shank, Threaded Hex Shank, Taper Shank, 1/2'' Shank Sliver & Deming)
Standard DIN338 (Stub DIN1897, Long DIN340, DIN345 Taper Shank are Available)
Process Fully Ground (Also have Roll Forging, Rolled & Polished, Milled)
Package Options PVC Pouch, Plastic Box, Individually in Skin Card, Double Blister, Clamshell
Key Features & Benefits
Superior Performance
Made of 5% Cobalt HSS with Titanium Nitride Coating, this drill bit achieves a hardness rating of up to HRC 67. The unique blend of materials provides exceptional oxidation resistance as it dramatically increases the overall hardness and durability of the bit.
Drilling a Precise Hole
Featuring a 135-degree split point tip design that minimizes bit wandering, combined with a perfectly straight round shank for optimal centering accuracy.
High Efficiency
The tapered web with progressive helix geometry ensures exceptional rigidity in hardened materials, while deep spiral flutes enable rapid chip evacuation for sustained drilling speed.
Flexible Pricing & Customization

If you have specific target price requirements, we can adapt the packaging, shipping methods, or alternative materials to meet your cost needs without affecting the operational use of the product.

HSS Chemical Composition & Hardness Chart
HSS Grade Grade Detail Chemical Composition (%) Hardness
W Mo Cr V Co
HSS 4241 4241 1.5-2.5 0.6-1.2 3.8-4.4 0.5-0.7 - 60-61.5 HRC
HSS 4341 4341 3.5-4.5 2.5-3.5 3.8-4.4 1.2-1.8 - 61-63 HRC
HSS 6542(M2) 6542(M2) 5.5-6.75 4.5-5.5 3.8-4.4 1.75-2.2 - 63-66 HRC
HSS-E Co5 M35 6-6.7 4.7-5.2 3.8-4.5 1.7-2 (4.5-5.5) 66-68 HRC
HSS-E Co8 M42 1.15-1.85 9-10 3.5-4.25 0.95-1.35 7.75-8.75 66-68 HRC
DIN338 Standard Size List
Diameter (mm) Flute Length (mm) Overall Length (mm) Diameter (mm) Flute Length (mm) Overall Length (mm)
0.5622 9.581125
1.01234 10.087133
1.52043 10.587133
2.02449 11.094142
2.53057 11.594142
3.03361 12.0101151
3.23665 12.5101151
3.53970 13.0101151
4.04375 13.5108160
4.24375 14.0108160
4.54780 14.5114169
4.85286 15.0114169
5.05286 15.5120178
5.25286 16.0120178
5.55793 16.5125184
6.05793 17.0125184
6.563101 17.5130191
7.069109 18.0130191
7.569109 18.5135198
8.075117 19.0135198
8.575117 19.5140205
9.081125 20.0140205
Drill Bit Finish Varieties
Industrial Tip TiN Coated
Industrial Tip TiN Coated
Black & Golden
Black & Golden
Gold & Black
Gold & Black
Industrial AlTiN Coated
Industrial AlTiN Coated
Bright Sliver
Bright Silver
Normal Titanium Coating
Normal Titanium Coating
Nitride Black
Nitride Black
Roasted Amber Cobalt
Roasted Amber Cobalt
Hex Shank Drill Bit
Hex Shank Drill Bit
Manufacturing Specifications
Drill Bit Types
Fully Ground Drill Bit
Fully Ground Drill Bit
HSS Edge Ground Drill Bit
HSS Edge Ground Drill Bit
HSS Roll Forging Drill Bit
HSS Roll Forging Drill Bit
Drill Bit Application Demo
Precision Drilling Angle
Quality Standard Verification
Customized Labels & Packaging
Custom Label Option A
Custom Label Option B
Custom Label Option C
Shank Overview Details
Packaging Options (Tubes)
Square tube with hook A
Square tube with hook A
Square tube with hook B
Square tube with hook B
Square tube with hook C
Square tube with hook C
Packaging Options (Cases & Blisters)
Plastic case A
Plastic case A
Plastic case B
Plastic case B
Blister
Blister
Factory Testing Department
Certifications & Facility Overview
Warehouse Storage
Processing Equipment
Finished Products Stock
Quality Testing Standards
Production Line View
Raw Materials Control
Shipment Inspection
Frequently Asked Questions (FAQ)
What materials are these HSS Cobalt drill bits best suited to cut?
These High-Speed Steel (HSS) drill bits with a 5% Cobalt alloy (M35/M42) are specifically designed for drilling hard materials, including stainless steel, cast iron, titanium alloy, and other tough industrial metals.
What are the advantages of a 135-degree split point tip?
The 135-degree split point design reduces the thrust force required to penetrate hard metals. It prevents the drill bit from wandering upon contact with the workpiece, facilitating highly precise and centered holes without needing a pilot hole.
How does the Titanium Nitride (TiN) coating improve durability?
The industrial TiN coating provides a high surface hardness (up to HRC 67) and significantly reduces friction. This lowers heat accumulation during drilling, extending the tool life up to several times compared to uncoated bits.
Do you offer customizable options for branding and packaging?
Yes, we support various custom labeling and packaging styles, including PVC pouches, square tubes with hooks, individual skin cards, double blisters, and plastic cases. We can customize the packaging to meet your market requirements.
Can you accommodate target pricing requirements?
Yes, if you have specific target prices, we can work with you to adjust the material composition (e.g., M2, M35, M42), finish type, packaging choices, or shipping configurations to align with your budget without sacrificing primary performance.

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