Product Features

Free-Spinning Stop Collar with O-ring

The Smart-Bit stop collar spins free of the drill bit, preventing surface damage or marking. When the stop collar stops spinning, the hole is complete.

Anti-Clog Debris Cavity

The Smart-Bit debris cavity gathers waste material, keeping it clear of the countersink, unlike conventional flush mounted countersinks. The waste simply falls out of the tool after each hole is completed.

Tungsten Carbide Tipped Drill Bit and Countersink

Tungsten carbide tips on the drill bit, as well as the countersink, remain sharp after extended use. Each package contains two different length drill bits, for use with different thicknesses of compressed fiber cement board.

Pre-Set Shaft Length

Together with the countersink, the overall hole depth is calibrated for use with either 5/16? (9mm) or 5/8? (18mm) thick fiber cement board, depending on which included drill bit is used. Installed fasteners sit slightly below the board surface, leaving room for resin that may be applied on top of the screw in some applications.