Conquer the toughest, highest-density metals with the unstoppable cutting performance of the industrial-grade INGCO AKDB0801 HSS-Cobalt Drill Bit Set. Engineered from premium M35 High-Speed Steel infused with 5% Cobalt, this professional-grade 8-piece essential kit is specifically built to withstand the extreme friction and blistering thermal heat generated when boring into ultra-hard materials. Where standard twist drill bits dull, warp, or snap, these cobalt-alloyed bits maintain their structural hardness and razor-sharp cutting edges, delivering clean, rapid, and repeatable holes across a versatile range of sizes.

The advanced split-point cutting tips bite instantly into slick metallic surfaces on contact, completely eliminating the need for a center punch and preventing frustrating bit walking. Paired with high-capacity spiral flutes that rapidly eject sharp metal shavings away from the cutting zone, each bit operates with lower internal friction and a vastly extended service life. Whether you are drilling structural stainless steel plates, cast iron components, high-tensile alloy frames, or hardened tool steels, this heavy-duty set brings the unyielding cutting power and industrial longevity that professional fabricators and precision machinists demand.

Key Technical Features:

• Model: AKDB0801

• Type: Industrial-Grade HSS-Cobalt (M35) Twist Drill Bit Set

• Set Quantity: 8 premium precision-matched pieces covering essential workshop diameters

• Material Composition: Premium M35 Grade High-Speed Steel with 5% Cobalt (HSS-Co) alloy reinforcement

• Heat Resistance: Engineered to maintain maximum structural hardness at elevated operating temperatures up to 600°C

• Tip Geometry: Precision split-point tips for instant self-centering execution without walking or slipping

• Flute Design: High-efficiency parabolic spiral flute geometry optimized for rapid chip evacuation and cooler drilling temperatures

• Shank Type: Standard straight cylindrical shanks compatible with conventional corded, cordless, and bench-mounted drill chucks

• Packaging: Supplied in a rugged, organized index case for secure tool protection, clean storage, and quick size identification

• Application Range: Specially optimized for high-efficiency industrial drilling through Inox (Stainless Steel), cast iron, high-tensile alloy steels, carbon steel, bronze, titanium, and thick non-ferrous metals