Saw Tooth Bit (Self Feed Bit) – Bores Large, Deep Holes Fast. Home » Products » Wood Drill Bits » Saw Tooth Bit (Self Feed Bit) – Bores Large, Deep Holes Fast. For plumbing rough-in work and many other uses. Sizes up to 2-9/16″ feature a single insidecutter, and larger sizes feature two inside cutters. SIZESIZESAW 1 3/8″SAW 2 9/16″SAW 1 1/2″SAW 3 5/8″SAW 1 3/4″SAW 4 5/8′ SAW 2 1/8″