Ingco 13mm Professional M35 HSS-Co Cobalt Metal Twist Drill Bit - Heavy-Duty Heat-Resistant High-Speed Steel Straight Shank Drill for Stainless Steel and Cast Iron (DBT01130131)

Attempting to bore holes through hardened alloy steels, dense cast iron, or tough structural stainless steel plates using standard high-speed steel (HSS) bits is highly inefficient—the intense frictional heat builds up instantly, destroying the sharp cutting edge and burning out the bit within seconds. For demanding industrial maintenance and heavy metal fabrication, you need a high-performance consumable bit engineered to sustain its hardness at extreme temperatures. The Ingco DBT01130131 Professional M35 HSS-Co Cobalt Metal Drill Bit is an industrial-grade tool engineered to cut cleanly through the most stubborn, hard-to-machine metals with smooth precision. Featuring a heavy-duty 13mm cutting diameter profile, this jobber-length twist bit provides the necessary core strength and sizing layout to drill exact pathways for structural bolts and heavy fasteners.

The unparalleled cutting endurance of this metal drill bit stems from its premium M35 high-speed steel core matrix infused with a true 5% cobalt alloy composition. This specialized metallurgic blend delivers exceptional hot-hardness and red-heat resistance, preventing thermal deformation of the cutting edges even when drilling at high speeds without optimal lubrication. The business end features a precision-ground split-point tip geometry layout that self-centers instantly upon contact, eliminating tool walking or sliding across smooth metallic surfaces. Designed with a highly efficient spiral flute geometry, it continuously evacuates abrasive metal chips to minimize friction and thermal build-up. Outfitted with a standard straight round shank layout, it seats securely into standard bench drills, industrial drill presses, and high-torque hand-held impact drills!

Technical Specifications

• Brand: INGCO

• Model: DBT01130131

• Product Type: Professional-Grade M35 HSS-Co Cobalt Twist Drill Bit

• Bit Diameter Sizing: 13.0mm Precision Metric Cutting Footprint

• Material Composition: Premium M35 High-Speed Steel (HSS) Core with 5% Cobalt Alloy Blend

• Hose Architecture: Standard Jobber Length Twist Profile

• Heat Resistance Rating: Superior red-heat hardness engineered for high-RPM friction loads

• Shank Interface Layout: Universal Straight Round Shank Drive Configuration

• Machine Compatibility Match: Universal fitment for industrial drill presses, bench-top magnetic drills, and standard corded or cordless rotary drills

• Primary Target Substrates: Tough stainless steel plates (304/316 grade), high-tensile alloyed steels, cast iron structures, hard carbon sheets, copper profiles, and dense composite plastics

• Primary Applications: Drilling precise bolt channels, clean anchoring pathways, pilot hole layouts for structural frames, and heavy mechanical fabrication repairs

• Total Package Quantity: 1 Piece Retail Display Layout

• Packaging Type: Supplied securely inside a professional double blister commercial hanging pack layout for tip protection and clean shelf display