25/32" X 3/16" HSS Aircraft Counterbore 1/4" Shank BoltsandNuts.com Part Number: 56C600HCS8Y/USA

Part Number: 56C600HCS8Y/USA

Part Number DWRRM

Part Number: BIT-KFDRSD3/8X19/32

• Low Profile Access – The bit ratchet complements our High Torque 1/4 Inch Bit Driver

Part Number DMOD17/64

25/32" X 3/16" HSS Aircraft Counterbore 1/4" Shank BoltsandNuts.com Part Number: 56C600HCS8Y/USAProduct Description Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1 8" or less), the operations is usually known as spot facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two piece construction, having an integral shank and