Ingco 4mm HSS-Cobalt M35 Drill Bit (DBT01130401) Premium Industrial Grade High-Speed Steel Metal Drill Bit for Drilling Stainless Steel, Cast Iron & Hard Alloys

Conquer the toughest, highest-density metals with the unstoppable cutting performance of the industrial-grade INGCO DBT01130401 HSS-Cobalt Drill Bit. Engineered from premium M35 High-Speed Steel infused with 5% Cobalt, this professional-grade 4mm drill bit 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, this cobalt-alloyed bit maintains its structural hardness and razor-sharp cutting edge, delivering clean, rapid, and repeatable holes.

The advanced split-point cutting tip bites 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, it 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 bit brings the unyielding cutting power and industrial longevity that professional fabricators and precision machinists demand.

Key Technical Features:

• Model: DBT01130401

• Bit Diameter: 4mm Precision Machined Cutting Width

• 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 tip 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 shank compatible with conventional corded, cordless, and bench-mounted drill chucks

• Packaging: Packed securely by heavy-duty double blister for crisp retail presentation and long-term tool protection

• 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