Irwin 26137539 Black Oxide Twist Drill Bit 3/8x12 in

Product Description

The IRWIN 26137539 is a black oxide twist drill bit designed for extended-reach drilling applications in metal and other hard materials. At 3/8 inch in diameter and 12 inches in working length, this bit gives tradespeople the reach needed for aircraft-style drilling tasks where a standard-length bit cannot access the work area. The black oxide finish reduces friction and helps resist heat buildup during cutting. Bit type is twist, suited for use in handheld drills and drill presses across a range of metal fabrication and installation tasks.

This extended-length drill bit is used in applications where deep or hard-to-reach holes are required, such as electrical rough-in through deep framing members, HVAC ductwork installation, plumbing through-penetrations, and general metal fabrication work. The 3/8 inch diameter is a common size for conduit knockouts, anchor bolt holes, and structural through-holes in light steel. Electricians, plumbers, HVAC installers, and sheet metal workers will find this bit useful in everyday trade work.

Key Features

• Black oxide finish reduces friction and heat during drilling in metal
• 12-inch working length provides extended reach for deep or obstructed drilling
• 3/8 inch diameter suits common trade applications including conduit and anchor holes
• Twist bit geometry for use in standard handheld drills and drill presses
• Designed for use in metal and other hard materials

Compatibility

Designed as a standard 3/8 inch shank twist drill bit compatible with 3/8 inch and 1/2 inch keyed and keyless drill chucks commonly used in trade-grade handheld drills and stationary drill presses.

Installation Notes

Install and remove drill bits only when the drill is powered off and the chuck is fully secured. Secure the workpiece before drilling to prevent movement. Use cutting fluid when drilling through steel to extend bit life and reduce heat. Extended-length bits are more prone to deflection at the start of a hole — use a center punch or pilot hole to maintain accuracy.

Technical Specifications

• Bit Diameter: 3/8 inches
• Bit Length: 12 inches
• Bit Type: Twist
• Finish: Black Oxide
• Material Group: Metal
• Package Length: 14.4 inches
• Package Width: 1.75 inches
• Package Height: 0.6 inches
• Weight: 0.1 pounds
• Country of Origin: China

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 26137539