Irwin 3016013 13/64" Cobalt Jobber Drill Bit, 135° Split Point

Irwin 3016013 13/64" Cobalt Jobber Drill Bit, 135° Split Point

The Irwin 3016013 13/64" Cobalt Jobber Drill Bit is a heavy-duty cobalt alloy steel bit engineered for drilling through abrasive alloy metal and hardened steel. Built with shock-resistant, heat-treated S2/cobalt alloy steel construction and a 135° split-point tip, this jobber-length bit resists walking on contact for precise, on-target starts. Sized at 13/64" (0.2031") with an overall length of 3-5/8", it's designed for demanding maintenance and repair work in metalworking, fabrication, and industrial applications where reliable hole quality is essential.

Key Features

• Trade Size: 13/64" diameter with a 3-5/8" overall jobber length for standard drill chucks.
• Durable Construction: Cobalt Alloy Steel (S2 steel base) for maximum strength, hardness, and resistance to heat and abrasion.
• Precise Drilling: 135° split-point tip eliminates walking for accurate, on-center starts.
• Heavy-Duty Use: Tackles metal drilling, including abrasive alloy metal drilling on hardened steel.
• Bit Type: Cobalt Jobber bit sold as an individual unit.
• Material Composition: Manufactured from shock-resistant, heat-treated S2 tool steel with a cobalt alloy formulation for superior wear resistance.

Technical Specifications

• Bit Type: Cobalt Jobber
• Size: 13/64 in
• Overall Length: 3-5/8"
• Product Primary Material: Cobalt Alloy Steel
• Product Material Group: Metal
• Individual Vs. Set: Individual
• Power Source: Non-Energy Using
• Warranty: None
• Claims Needed: No
• Battery Included: No
• Country of Origin: China

Typical Applications

• Metal Drilling and Fabrication
• Hardened Steel and Alloy Metal Drilling
• Maintenance and Repair Work
• Machine Shop and Industrial Tooling

Why Irwin?

Irwin engineers this 13/64" cobalt jobber bit from heat-treated, shock-resistant S2/cobalt alloy steel to stand up to abrasive alloy metal and hardened steel drilling. The 135° split-point tip delivers accurate starts without walking, making this bit a dependable choice for maintenance, repair, and metalworking professionals who need consistent hole quality. As part of Irwin's cobalt drill bit line, it's built for professionals who demand precision and longevity from their metal-drilling tools.