Irwin 3041020 Speedbor Max Spade Bit 1-3/8 X 6 in

Product Description

The IRWIN INDUSTRIAL TOOL CO 3041020 is a Speedbor Max spade-style drill bit designed for fast, clean wood boring in residential and light commercial construction and renovation work. Measuring 1-3/8 inches in diameter and 6 inches in length, this standard-length bit features a tri-flute body that accelerates chip ejection and reduces clogging during deep cuts. A full screw tip allows the bit to self-feed without requiring extra downward pressure. The grooved hex shank locks securely into any standard drill chuck or bit extension, preventing slipping under torque. Electricians, carpenters, plumbers, and general contractors reach for this bit when boring through framing members and plates for wire or pipe runs.

This bit is suited for through-boring wood studs, joists, and plates in rough-in work. Its 1-3/8-inch diameter is a common size for running conduit, romex, or small-diameter pipe through framing. The 6-inch length provides enough reach for standard framing lumber without requiring an extension. The cutting spurs feature three cutting edges each, extending edge life and maintaining hole quality over repeated use. The bit fits all standard 1/4-inch quick-change chucks, making it compatible with most cordless and corded drill drivers used in the field. Sold in a package of 3.

Key Features

• Tri-flute design for faster chip ejection and reduced bit clogging
• Full screw tip self-feeds into material, eliminating need for added downward pressure
• Cutting spurs with 3 cutting edges each for extended durability and cleaner hole entry
• Grooved hex shank prevents slipping in drill chucks and bit extensions
• Fits all standard 1/4-inch quick-change chucks
• Standard 6-inch length suits most single-member boring without an extension

Compatibility

Fits all standard 1/4-inch quick-change chucks and standard drill chucks. Compatible with cordless and corded drill drivers equipped with a hex-shank chuck or quick-change adapter.

Installation Notes

Secure the grooved hex shank fully into the drill chuck or quick-change adapter before use. When boring through framing, confirm no embedded fasteners or electrical conductors are present in the cut path. Wear appropriate eye protection during use. For deep bores beyond the bit length, use a rated bit extension matched to the hex shank size.