Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CB77BW found under Grinding Machine Carbide Tool Bi by Hammond Machinery Inc. The National Stock Number assigned to this part is 3415007279252, and the Federal Supply Class is 3415 Grinding Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CB77BW.