Five-Size Drill Guide Block
A handheld drill guide with five tall bushing towers (3.2, 4.2, 5.2, 6.4 and 8.2 mm) that keep a bit perfectly perpendicular, plus a 90° V-groove underside that self-centers the holes on dowels and round stock. Block is 102 x 36 x 44 mm.
tool drill guide jig