Irwin 3016028 Cobalt Steel Drill Bit, 7/16-in., Jobber Length

The Irwin 3016028 is a professional-grade cobalt steel drill bit designed for demanding metal drilling applications. Built with 5% cobalt construction and heavy-duty web design, this bit delivers superior heat and abrasion resistance compared to standard steel bits, making it ideal for drilling through tough materials including hardened steel, alloy metals, and abrasive materials. The 135-degree split-point tip minimizes bit walk for more precise drilling.

Jobber length at 2-5/8 inches overall, this 7/16-inch diameter bit fits most drill presses and hand drills with its straight shank profile. Whether you're a professional contractor tackling heavy-duty metalworking or a serious DIYer taking on challenging projects, this Irwin bit stays sharp longer and handles high RPMs without performance loss.

Features and Benefits

• 5% Cobalt Construction: Delivers higher heat and abrasion resistance for extended bit life in tough drilling applications.
• 135-Degree Split-Point Tip: Minimizes bit walk for more accurate drilling performance.
• Heavy-Duty Web Design: Provides strength and durability for professional-grade performance in demanding jobs.
• Jobber Length: At 2-5/8 inches, fits standard drill presses and hand drills with a straight shank profile.
• High RPM Capability: Maintains performance at high speeds without loss of cutting efficiency.

Specifications

• Brand: Irwin
• Model: 3016028
• Diameter: 7/16 inch
• Overall Length: 2-5/8 inches (jobber length)
• Tip Style: 135-degree split point
• Material: Cobalt steel (5% cobalt)
• Shank: Straight profile
• Flute Type: Spiral flute