TMT Tooling Pro-Grade High-Cobalt Drill Bit Kit.
Engineered for professionals who drill hard materials every day, the TMT Tooling Pro-Grade High-Cobalt Drill Bit Kit is manufactured from premium M42 cobalt high-speed steel for exceptional durability, heat resistance, and long service life.
The high cobalt content allows these drill bits to retain hardness at elevated temperatures, reducing edge wear and premature failure. This makes them ideal for demanding applications including stainless steel, high-tensile steel, cast iron, and hardened materials.
Precision-ground cutting edges deliver clean, accurate holes with consistent performance, even under heavy load. Whether you’re working in marine, fabrication, industrial, or workshop environments, these drill bits are built to perform where standard HSS bits fail.
Supplied in a durable, job-ready storage case, this kit is designed for tradespeople who value reliability, efficiency, and tools that last.
Key Features:
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Premium M42 cobalt high-speed steel
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Excellent heat resistance for longer bit life
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Suitable for stainless, high-tensile steel, and hard materials
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Precision-ground for clean, accurate drilling
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Heavy-duty performance for professional use
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This kit includes 5 drill bits of each stocked size, providing excellent coverage for workshop, site, and marine applications while ensuring you always have spares on hand.
Sizes Included (mm):
1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0Total Quantity:
125 pieces (25 sizes × 5 bits per size)