Irwin 1966933/42922 Forstner Bit, 1-3/8 in Dia, 3-1/2 in OAL, 1-Flute, 3/8 in Dia Shank, Reduced Shank

Starts the bit cleanly on uneven surfaces and bores smooth, flat bottomed holes. Fits 3/8 in and larger drills and drill presses. For wood drilling applications Features: - IRWIN Marples forstner bits drill clean and precise flat-bottomed holes and pocket holes quickly and easily - Teeth designed for clean holes - Cutting angles maximize speed of cut - Reduced shank fits 3/8 in and larger drills and drill presses - Brad point tip starts cleanly on uneven surfaces