Heat Treatment
Advanced vacuum heat treatment process for maximum hardness and durability.

Surface Coating
Premium TiN or Black Oxide coatings reduce friction and prevent heat buildup.

Complete Size
Comprehensive range of diameters and lengths to meet every industrial requirement.

Compatibility
Compatible with all standard power drills and industrial CNC machinery.

Diversitech Global Mental Drill Bit Set
Reliable Metal Drill Bit Set Solutions for Global Brands
Diversitech Global has been deeply involved in the hardware tool industry for many years and is an experienced hardware tool supplier in China. We support OEM/ODM customization services for drill bit size, kit configuration, coating color, storage box and brand packaging. Whether machining soft metals, structural steel, stainless steel or cast iron, Diversitech Global drill sets can provide more precise drilling results and longer service life, meeting the high standards of professional users, contractors and industrial customers worldwide.

Titanium Coating Technology

Our factory uses precision grinding equipment and advanced coating processes to apply a uniform TiN coating to the cutting edges and spiral flutes of drill bits. This process significantly improves the wear resistance and service life of drill bits, making them particularly suitable for frequent drilling of steel, aluminum, and other metal materials.

Black Oxide Protection
As a professional drill bits manufacturer, Diversitech Global adopted black oxide treatment after heat treatment. During production, we rigorously control anodizing time, temperature, and surface cleanliness to ensure consistent appearance quality and stable cutting performance across every batch of drill bits. This process is widely used in economical and mid-range Metal Drill Bit Sets projects.
Technical Specifications
Material
High-Speed Steel (HSS) with 5% Cobalt (M35)
Point Geometry
135° Split Point for Self-Centering
Shank Type
Straight Shank / Reduced Shank (Option Available)
Coating
TiN (Titanium Nitride) or Amber Polish
Size Range
1mm - 13mm (Available in 19pc, 25pc, 51pc Sets)
Hardness
HRC 64-67














