MAKITA D-29957 Self Feed Wood Drill Bit 1-1/8" (28 mm) 7/16" Hex Shank

MAKITA D-29957 Self Feed Wood Drill Bit / Concealed Hinge Bit 1-1/8" (28 mm) 7/16" Hex Shank
Specifications MAKITA D-29957 is a self-feed drill bit designed specifically for drilling 28 mm (1-1/8 inch) diameter holes in wood. Crafted from heavy-duty steel, it features outlining spurs that help produce round and clean holes.The threaded screw point is the key feature that makes this drill bit stand out, self-feeding the bit into the workpiece so the user barely has to apply downward force, greatly reducing fatigue and speeding up work. The shank is a 7/16-inch hex, the standard size for many Makita Self Feed drill bits, featuring 3 milled flats for secure clamping in high-torque drill chucks.                 
Key Features
- High Drilling Performance: The specialized feed screw pulls the bit into the wood, enabling fast and continuous drilling
- Clean, accurate holes: Outlining spurs scribe and sever the wood fibers before the main cutting edge, delivering smooth hole edges.
- 7/16" Hex Shank: Hexagonal shank with three milled flats prevents slipping in the drill chuck
- Durable Construction: Engineered specifically for heavy-duty use by professionals
Applications
- Electrical and Plumbing Work: Drilling 28 mm holes for routing conduits, pipes, or cables in wood framing
- Concealed Hinge Installation: Used for drilling holes for certain types of 28 mm concealed hinges (though 35 mm is more commonly standard)
- Construction Work: Drilling medium-sized holes in wooden beams or structural timber where drilling speed is required
- General Woodworking: Drilling large holes in DIY and woodworking projects requiring fast drilling speeds