DIN338 HSS Cobalt Twist Drill Bits for Metal Industrial Applications High Precision Durable Cobalt Steel Drill Bits for B2B Metalworking Supplies

Basic Info

Model NO.DM-H001

TypeTwist Drill Bit

MaterialHigh Speed Steel

UsageMetal Drilling

HardnessHRC61-66

Point Angle118 & 135 Degree

Surface FinishTi-Coated, Black Oxide, Amber, Bright

ShankStraight Shank, Taper Shank

Production Capacity100,000 PCS Per Month

HS Code8207509000

Product Description

Professional HSS Twist Drill Bits

Drill bits are precision cutting tools used to create cylindrical holes. Held by a drill that provides torque and axial force, these bits are essential for metalworking and various industrial applications.

Standard: DIN 338 (jobber series), DIN 340 (long series), DIN 1897 (stub series)
Material Options: HSS4241, HSS4341, HSS6542(M2), HSS Cobalt 5% (M35 Co5%)
Point Angle: 118° or 135° (Split Point available from 3.0mm)
Application: Ideal for drilling steel, cast steel, grey cast iron, malleable iron, and sintered metal.

Manufacturing Type	Surface Finish	Key Characteristics
Roll Forged	Black Finish	Economical & Durable
Rolled & Polished	White Finish	Smooth Chip Removal
Fully Ground	Amber / Cobalt	High Precision & Heat Resistance

Technical Specifications

HSS GRADE & HARDNESS
Mo2Cr4Vsi--4241	HRC 60-62
Mo3Cr4Vsi--4341	HRC 62-65
Mo5Cr4V2-6542/M2	HRC 63-66
Mo5Cr4V2Co5-M35	HRC 64-67 (Cobalt 5%)

Product Catalogs & Usage

Over 15 years of specialized manufacturing experience.
Global distribution to USA, Europe, Australia, and Middle East.
Comprehensive range: Masonry, SDS, Glass & Tile, Step Drills, and Wood bits.
High customer satisfaction with over 95% reorder rate.

Factory Excellence & Quality Control

Packaging & Logistics

Shipping Methods:

Express: TNT/FedEx/DHL/UPS for samples or small orders (under 45KG).
Air/Sea: For bulk batch goods to major ports worldwide.
Delivery Time: 3-7 days for samples; 2-4 weeks for batch production.

Frequently Asked Questions

Q: Are you a factory or trading company?

A: We are a manufacturer with over 15 years of experience in this industry. We welcome video inspections of our facility.

Q: What is your biggest advantage?

A: Our rigorous quality control system ensures high performance across different standards. Being a direct manufacturer allows us to offer competitive pricing and quick response times.

Q: Is OEM/Customization available?

A: Yes, we provide full OEM services including engraved or laser logos, customized inner boxes, and specific packaging requirements.

Q: How can I customize my products?

A: Simply provide your technical drawings with details regarding surface treatment, material, quantity, and any special requirements.

Q: What is the typical delivery time?

A: For standard bulk orders, it depends on the production schedule. For customized products, it generally takes 15-30 days after receiving the advance payment.

Q: Are samples available for testing?

A: Yes, samples can be provided for quality testing. Sample fees are typically returned upon the placement of an official order.