1/2 inch in diameter (D).
Cutting height (B) is one inch.
Shank (diameter): 1/.
6 inches is the overall length (L).
B1 2-4/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/4 B1 2-3/.
These bits are intended for deep slot and hole tenon work, such as that found in doors, chairs, and tables, among other things. For fast cuts and chip clearance, a special carbide with a 1-inch long up-shear and chipbreaker is used. This product is intended for use in lock Mortising machines and door machines. #4554, diameter (D) 1/2, cutting height (B) 1, shank (D) 1/2, overall length (L) 6, B1 2-3/4, flutes 2, 45540 carbide #45540 carbide #45540 carbid. Tipped up-shear bit slot mortiser with a 1/2 inch diameter and a 1/2 inch shan.
For those times when you need to make deep mortises, this is a godsend.
It is particularly well suited for the installation of upscale Emtek pocket door hardware. In conjunction with templaco jigs, it is ideal. I really like it.