Irwin Industrial Tool Co 88886 6 Piece Spade Bit Set

Product Description

The IRWIN INDUSTRIAL TOOL CO 88886 is a 6-piece Speedbor Blue Groove flat spade bit set designed for fast, clean wood boring in residential and commercial applications. Each bit features a blue groove point and cutting edge geometry that accelerates chip removal and reduces friction during drilling. Double cutting spurs scribe the perimeter of each hole before the main cutting edge engages, minimizing tearout and breakout on the exit side. Compatible with 1/4 inch and larger electric drills, this set covers the most common boring sizes from 3/8 inch through 1 inch and is suited for electricians, plumbers, and carpenters drilling through framing, joists, and sheeting.

This set is intended for use in wood substrates including dimensional lumber, engineered wood, and sheathing. It fits standard 1/4 inch hex chuck drills and larger keyed or keyless chuck drills, making it practical on job sites where a single driver or drill is in use. The six included sizes address rough-in work, cable and pipe pass-through holes, and general carpentry boring tasks. Licensed electricians and plumbers running conduit or piping through wood framing will find the full size range useful for a single-kit solution.

Key Features

• Blue groove point and cutting edge geometry for faster chip removal and reduced heat buildup
• Double cutting spurs scribe the hole perimeter to reduce breakout on exit side
• Compatible with 1/4 inch and larger electric drills including standard hex chuck drivers
• Six-piece set covers 3/8, 1/2, 5/8, 3/4, 7/8, and 1 inch boring diameters
• Flat spade bit profile suited for framing lumber, joists, and wood sheathing

Compatibility

Designed for use with 1/4 inch and larger electric drills. Set includes 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, and 1 inch spade bits for use in wood boring applications.

Installation Notes

Spade bits are installed and operated by electricians, plumbers, and carpenters performing rough-in drilling through wood framing members. Confirm the drill chuck is fully tightened and the workpiece is secured before starting. When boring through framing near live circuits or pressurized lines, follow applicable NEC or IPC clearance requirements. Do not use spade bits on metal, masonry, or materials other than wood.