Irwin IWAX236PC Speedbormax Spade Bit Set 6 Piece

Product Description

The IRWIN INDUSTRIAL TOOL CO IWAX236PC is a 6-piece Speedbor Max spade drill bit set designed for fast, accurate boring in wood and wood-composite materials. The set includes six standard-length bits covering six common sizes from 1/2 inch through 1-1/4 inches. A tri-flute design accelerates chip ejection to keep the cut clear and reduce heat buildup. Each bit features a full screw tip that allows self-feeding without added pressure, making it well suited for repetitive production drilling or rough-in work where speed and control both matter. Electricians, plumbers, and general contractors reach for spade bit sets like this during framing and rough-in phases.

This set is built for trade professionals drilling wire, pipe, and duct penetrations through studs, joists, and plates. The six-size range covers the most common rough-in bore diameters encountered in residential and light commercial construction. The grooved hex shank seats securely in a drill chuck or bit extension and fits all standard 1/4-inch quick-change chucks, allowing fast bit swaps on the job. Cutting spurs incorporate three cutting edges per spur for extended service life even in dense or reclaimed lumber.

Key Features

• Tri-flute design for faster chip ejection and cooler cutting
• Full screw tip enables self-feeding without manual downward pressure
• Three-edge cutting spurs extend bit durability in hard or dense wood
• Grooved hex shank prevents slipping in drill chucks and bit extensions
• Fits all standard 1/4-inch quick-change chucks for rapid bit changes
• Six-piece set covers 1/2, 5/8, 3/4, 7/8, 1, and 1-1/4 inch bore sizes

Compatibility

Designed for use with any drill or driver accepting a standard 1/4-inch quick-change chuck, including corded and cordless models commonly used in electrical, plumbing, and carpentry rough-in applications.

Installation Notes

Spade bit sets of this type are installed and used by electricians, plumbers, and carpenters during structural rough-in work. Confirm the drill chuck is fully seated and locked on the grooved hex shank before drilling. When boring through multiple members or using a bit extension, reduce feed rate to maintain control and prevent bit deflection. Always wear eye protection and secure the workpiece before starting the cut.