Product Specification

M35 HSS Twist Drill Bits with 5% Cobalt – Precision Drill Bits for Metal, Wood, and Plastic

Product Overview:
The M35 High-Speed Steel (HSS) Twist Drill Bits represent the pinnacle of precision engineering and durability in the field of industrial drilling. Manufactured using M35 HSS material, which incorporates 5% cobalt, these drill bits offer exceptional heat resistance, increased wear resistance, and the ability to withstand the high-speed demands of drilling into hard metals, plastics, wood, and other materials. Designed with a 135° split point, these drill bits ensure efficient cutting, precise hole formation, and minimal bit wandering, even under high stress conditions.

Product Features:

High-Performance Material: Constructed from M35 HSS with 5% cobalt, these drill bits are optimized for high-speed drilling and high-temperature conditions. The addition of cobalt enhances the bit’s ability to maintain sharpness and integrity during continuous use, especially when drilling into tough materials.

Precision Design: The 135° split point geometry is engineered to reduce walking and ensure precise starts without the need for a pilot hole. This geometry is ideal for drilling accurate holes with minimal friction and improved cutting efficiency.

Versatile Applications: These drill bits are designed for a broad range of applications, making them suitable for use in industries such as automotive, construction, metalworking, and woodworking. The bits can effectively drill through a variety of materials, including steel, cast iron, aluminum, plastics, composites, and wood.

Long-Lasting Durability: The fully ground edges and heat-treated process enhance the tool's longevity and reduce the rate of wear, providing consistent performance even under rigorous drilling conditions.

Technical Specifications:

Material Composition: M35 High-Speed Steel with 5% Cobalt

Point Geometry: 135° Split Point for precise starts and minimal walking

Shank Type: Round Shank, compatible with both keyed and keyless chucks

Coating: Bright finish for enhanced corrosion resistance and smooth cutting action

Manufacturing Process:

Material Selection: The primary material for these drill bits is M35 HSS, a high-performance steel alloy with an added 5% cobalt. This combination offers improved hardness, wear resistance, and heat resistance.

Precision Grinding: Each drill bit is subjected to a precision grinding process, which ensures that the cutting edges are finely honed for optimal performance. This grinding process also reduces friction during operation, enhancing the efficiency of the bit.

Heat Treatment: The drill bits are heat-treated to a specific hardness level, ensuring that they retain their cutting capabilities and are capable of enduring high temperatures during high-speed drilling operations.

Rigorous Testing: Each batch undergoes stringent quality control measures, including performance testing to verify sharpness, durability, and functionality. This ensures consistent product quality across all sizes and batches.

Applications:

Metalworking: Particularly effective for drilling stainless steel, aluminum alloys, cast iron, and brass. M35 HSS drill bits are known for their superior heat resistance in high-speed drilling of metal components.

Woodworking: Suitable for drilling through various softwoods, hardwoods, and plywood, providing clean, accurate holes without causing excessive splintering.

Plastic and Composites: Capable of efficiently drilling through plastics, fiberglass, and other composite materials, these bits maintain cutting precision across a range of synthetic materials.

Not Recommended: These drill bits should not be used on glass, ceramics, or high-carbon steels due to their hardness and brittleness.

FAQ:

Q1: Are these drill bits capable of handling hard metals such as stainless steel?
A1: Yes, the M35 HSS with 5% cobalt formulation is specifically designed for high-performance drilling in tough materials, including stainless steel, cast iron, and other hard alloys.

Q2: What is the recommended drilling speed for these bits?
A2: For hard metals like stainless steel, a low RPM (approximately 800-1200) is recommended. For softer materials such as wood or plastics, higher speeds of 2000-2500 RPM can be used.

Q3: How can I ensure the longevity of these drill bits?
A3: To prolong the lifespan of these bits, use cutting fluid during metal drilling to reduce heat buildup, maintain consistent pressure, and avoid excessive speeds that could lead to overheating.

Q4: Can these drill bits be used with both corded and cordless drills?
A4: Yes, these drill bits are compatible with both corded and cordless drills, as well as drill presses, providing flexibility for various applications.