The Porter-Cable 43072PC is a 45° Chamfer Router Bit. The 43072PC bit is used for 45° bevel cutting. The router bit has a lower depth setting which results in chamfer with fillet. The 43072PC has a Pozi-Stop Shank which automatically locates the bit at the correct height in the collet. This makes switching between bits fast and easy. The Pozi-Stop Shank creates a strong and long lasting bit. The Porter-Cable 43072PC bit includes a Monster Carbide which is 40% thicker carbide than standard bits. This generates less friction and provides smoother cuts.