IRWIN Countersink Tool Wood Drill Bit Size:#12 (7/32") With various hole height positions

With various hole height positions allowing hole preparations in different material thicknesses

3" Model - Overall: 5" x 5" x 2" H (Fits over 3" x 3" post)

the simple turning of the Chicago baluster will give your stairs a clean design

this tread provides a finished appearance on open staircases where the side of the tread is visible

centerlines and drill points is simplified with the level's ruled working edge

IRWIN Countersink Tool Wood Drill Bit Size:#12 (7/32") With various hole height positionsTapered drill with widened flutes for drilling fast, clean pilot holes. Adjustable four cutter counterbore cuts and clears chips quicker for fast, smooth countersinking. Counterbore attaches to flats on shank with two hex screws for a secure fit, and can be adjusted for controlled pilot hole depth. 1 4" quick change shank reduces slipping in standard chucks and is compatible with all 1 4" quick change chucks, including impact drills.