3/4-Inch Spade Bit

Fast, precise 3/4-inch holes for installation and woodworking

This 3/4-inch spade bit is engineered to bore precise 0.75-inch diameter holes through softwood, hardwood, plywood, and composite lumber. Its sharp pilot tip helps keep the bit centered while the flat paddle clears material quickly at high rotational speeds.

Keep this practical bit close for electrical, plumbing, HVAC installation, and workshop projects. It is sized for common clearance work through framing and for standard 3/4-inch bench dog holes.

Anatomy & Design

Central pilot tip: Embeds into the wood to position the hole precisely and help prevent the bit from slipping when starting.

3/4-inch flat paddle: Measures exactly 0.75 inches across, with angled cutting edges for rapid chip removal. Modern versions may include side spurs to help slice outer wood fibers for cleaner hole edges.

1/4-inch quick-change hex shank: Snaps into compatible impact drivers and standard drill chucks to help reduce high-torque slippage.

Primary Uses & Characteristics

Electrical and plumbing clearance: Suitable for routing standard 12/2 and 14/2 NM-B cable, small PEX water lines, or copper tubing through 2×4 framing studs and joists.

Bench dog holes: Useful for boring 3/4-inch holes in woodworking benches for standard 3/4-inch bench dogs and holdfast clamps.

Rapid boring: Designed to clear material quickly rather than produce furniture-grade finishes. Back the workpiece with scrap wood to help reduce rough exit edges and blowout.