Straight Shank Counterbores
Counter-boring is the enlargement of a portion of a hole that has previously been formed.
If the counter-bored portion is shallow (1/8ï¿½ or less), the operation is usually know 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 counter-boring.
These counterbores are made of two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.
Mutual Screw offers many types of counterbores including: Aircraft Counterbores, Cap Screw Counterbores, Pilot Counterbores, Solid Counterbores, Straight Shank Counterbores, and Taper Shank Counterbores.
For additional information, or technical assistance, please call a Mutual Screw product specialist.
We will be happy to help you!