Commonly referred to as a combination drill and countersink, this #5 x 2-3/4" OAL 82-Degree Uncoated Solid Carbide Center Drill Bit is used in metalworking to drill and countersink in a single pass. It is also useful for starting hole for a larger-sized drill bit or to make an indentation in the end of a piece in order to mount a lathe center.
![#4 x 2-1/2" OAL 82-Degree Solid Carbide Center Drill, USA (Qty. 1) #4 x 2-1/2" OAL 82-Degree Solid Carbide Center Drill, USA (Qty. 1)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/140136/429657/HTC-586-0782__08263.1650470461.jpg?c=2)