Ingco 16mm Professional M35 Cobalt HSS-Co Twist Drill Bit - Heavy-Duty Industrial Metal Drilling Bit for Stainless Steel and Hardened Iron (DBT01130161)

Drilling clean, precise holes through high-tensile metals like stainless steel, cast iron, or hardened alloy plates using standard high-speed steel (HSS) bits is a frustrating and costly task. Standard bits overheat rapidly under intense thermal friction, causing their cutting edges to soften, dull, and melt away within moments. The Ingco DBT01130161 16mm Professional M35 Cobalt Twist Drill Bit is an industrial-grade drilling solution engineered to withstand extreme thermal heat and cut through the toughest metals with absolute ease. Boasting a substantial 16mm diameter profile, this premium cobalt hardware component enables industrial fabricators, automotive technicians, and structural welders to drill heavy-duty structural frames without tool breakdown.

The exceptional structural lifespan and elite cutting performance of this drill bit stem from its premium M35 High-Speed Steel composition alloyed with 5% Cobalt (HSS-Co). This specialized metallurgical matrix gives the bit an incredibly high red-hardness threshold, meaning it maintains a razor-sharp cutting edge even when glowing under high-friction workloads. Outfitted with a precision-ground split point tip layout, the bit bites directly into smooth metal surfaces upon contact, completely eliminating tool "skating" or wandering and removing the need for a pilot hole. Designed with a high-capacity spiral flute geometry, it clears heavy metal chips rapidly to minimize heat buildup, ensuring consistent performance on high-volume production lines and active job sites alike.

Key Features

• Premium M35 Cobalt Steel (HSS-Co 5%) – Formulated with 5% cobalt alloy to deliver elite heat resistance and structural hardness when tackling tough, abrasive metals.

• Large 16mm Cutting Diameter – Heavy-duty 16mm structural sizing provides clean, wide bore profiles in thick steel frameworks and machinery mountings.

• Precision Split Point Tip – Self-centering sharp point design bites instantly into materials to prevent tool wandering and guarantee flawless hole placement accuracy.

• Rapid Chip Evacuation Flutes – Deeply ground dual-spiral channels lift sharp metal filings and debris smoothly out of deep holes to eliminate friction drag.

• Industrial Wear Resistance – Outlasts standard titanium-coated or black-oxide HSS drill bits by up to 10 times when consistently drilling dense stainless steel.

• Single Blister Commercial Presentation – Shipped packed in a heavy-duty single-blister retail card layout to protect the precision-ground cutting edges during warehouse handling.

Technical Specifications

• Brand: INGCO

• Model: DBT01130161

• Product Type: Industrial M35 Cobalt Twist Drill Bit

• Bit Cutting Diameter: 16.0 mm Heavy Profile

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

• Tip Geometry Type: Precision-Ground Self-Centering Split Point

• Flute Layout Profile: High-Capacity Dual Spiral Flutes

• Primary Machine Compatibility: Fits heavy-duty 16mm benchtop drill presses, magnetic core drills, and high-torque industrial rotary drills

• Primary Target Substrates: Stainless steel (INOX), hardened carbon steels, cast iron, high-tensile spring steel, sheet metal panels, bronze, and titanium alloys

• Primary Applications: Industrial structural steel fabrication, commercial vehicle chassis modification, heavy machinery repair, and pipeline assembly installation

Ideal For

Industrial metal fabricators, maintenance engineers, custom garage mechanics, commercial pipefitters, and professional trade fabricators who require an unyielding, maximum-heat-resistant 16mm drill bit to bore cleanly through hard alloys.

Package Includes

1 × INGCO DBT01130161 16mm Cobalt HSS-Co Drill Bit 1 × Sealed Heavy-Duty Single Blister Retail Card Packing Layout