High Speed Steel Twist Drill Bits

High Speed Steel Twist Drill Bits - Professional Grade Industrial Drilling Solutions

Danyang Ebuy Tools' High Speed Steel Twist Drill Bits deliver exceptional performance in demanding industrial applications. Engineered from premium tungsten-molybdenum-chromium alloy steels, our bits maintain Rockwell hardness of 63-66 HRC at temperatures up to 600°C. With manufacturing capacity of 150,000 pieces daily and 77,000 square meters production facility, we provide reliable large-volume supply. Our 319 skilled employees ensure strict quality control following DIN 338 and ASME standards.

Our Factory

Technical Specifications

Parameter	Standard Grade (M2)	Cobalt Grade (M35/M42)
Hardness Rating	63-65 HRC	66-68 HRC
Operating Temperature	Up to 600°C	Up to 650°C
Specific Gravity	8.15 g/cm³	8.25 g/cm³
Helix Angle	30° (Type N)	30° (Type N)
Point Angle	118° / 135° Split Point	118° / 135° Split Point
Surface Treatment	TiN / TiAlN Optional	TiN / TiAlN Optional
Tolerance Class	h8 Diameter Precision	h8 Diameter Precision

Our Certificate

Why Choose Our Twist Drill Bits?

Superior Material Composition

Your drilling operations demand reliability. Our bits feature balanced metallurgical microstructure that prevents immediate fracture under vibration and torque loads. The tungsten-molybdenum matrix provides excellent abrasion resistance while maintaining structural toughness.

Advanced Surface Treatments

When you need extended tool life, our TiN and TiAlN coatings deliver. These treatments increase surface hardness up to 3000 HV and reduce friction coefficient to less than 0.4, preventing edge build-up and galling.

Precise Manufacturing Standards

Your projects require accuracy. We manufacture according to international standards including DIN 338, DIN 340, and ASME/ANSI B94.11M. Every bit undergoes rigorous dimensional inspection to ensure tolerance within h8 limits.

Exhibition

Key Applications

Heavy-Duty Structural Fabrication

In structural steelwork involving I-beams and plates, our Cobalt-grade M35 High Speed Steel Twist Drill Bits excel. Their superior toughness handles low-rigidity environments of magnetic base drills and portable field machining. You can rely on them in situations where carbide bits would be too brittle.

Automotive Component Machining

For drilling austenitic stainless steel and titanium alloys, our M42 HSS bits with 8% cobalt content perform exceptionally. The high hot hardness prevents cutting edge softening during work-hardening phases typical of these challenging materials.

Precision Maintenance Operations

In mixed-material environments requiring holes in aluminum, mild steel, and engineered plastics, our TiN-coated HSS bits minimize edge build-up. This significantly reduces downtime in continuous assembly lines.

Aerospace Applications

Your aerospace maintenance requires drilling rivet and fastener holes in Aluminum 7075 or Titanium 6Al-4V. Our Cobalt-grade bits resist the abrasive nature of titanium and manage heat generation effectively, ensuring hole integrity without micro-cracking.

Quality Assurance Process

Our comprehensive quality control system ensures every products meets your specifications:

· Hardness Verification: Random sampling using Rockwell C testers

· Concentricity Testing: Cutting lip height difference within 0.02mm-0.05mm

· Microstructure Analysis: Metallographic checks for uniform carbide distribution

· Performance Testing: Life-cycle benchmarking according to ISO 235 protocols

Production Process

Packaging

Frequently Asked Questions

What makes your items distinctive from standard carbon steel bits?

Our bits keep up hardness at tall temperatures where carbon steel devices fall flat. The complex combination composition with tungsten, molybdenum, and chromium gives 'Red Hardness' - the capacity to remain sharp indeed at 600°C working temperatures.

Which review ought to I select for stainless steel applications?

For austenitic stainless steel, we prescribe our Cobalt-grade (M35 or M42) bits. The cobalt expansion increments warm resistance and anticipates work-hardening issues common with stainless steel machining.

How do surface coatings move forward performance?

TiN and TiAlN coatings diminish contact and increment surface hardness. This implies longer instrument life, diminished warm era, and superior chip departure. For mixed-material applications, coated bits anticipate bothering and edge build-up.

What's the distinction between 118° and 135° point angles?

The 118° point point works well for general-purpose penetrating in gentler materials. The 135° split-point plan is self-centering and perfect for harder materials, giving way better entrance with less walking.

Can these bits handle convenient penetrating applications?

Yes, our HSS bits are particularly planned for non-rigid setups. Not at all like fragile carbide options, they offer flexural quality to survive vibration, misalignment, and breakthrough stun common in field operations.

How ought to I optimize cutting parameters?

Start with direct speeds and nourishes. HSS bits perform best with reliable chip expulsion. Utilize cutting liquid when conceivable, particularly for harder materials or profound gaps. Dodge intemperate bolster rates that can cause untimely wear.

Contact Us

Ready to upgrade your drilling operations with High Speed Steel Twist Drill Bits? Contact our team at [email protected] for custom solutions and competitive pricing.