High speed steel. Fast spiral, wide flute. Overall lengths range from 2” to 2-3⁄4”.
Size F (.257”) only for new Bolduc Pinblocks. 2” precision cutting edge for longevity and increased stability.
Permanently etched markings.
Positive depth control assures exact hole depth. Black oxide finish on cold rolled steel. Set includes hex wrench and 1 each: 3/16”, 1/4”, 5/16”, 3/8”, 7/16”, and 1/2” diameter collars.
Makes smooth flat-bottomed hole. The correct drill for installing key leads. Manufactured from top quality high-carbon steel.
Professional HSS spiral drills for hammer boring. Custom short length ensures accuracy, eliminating the need for pre-centering or brad points. Lengths from 2-1⁄4” to 2-1⁄2”.
Precision-machined countersink with 7 flutes. Great for deburring drilled holes, countersinking screws, etc. Wooden handle. Quick & easy to use.
Fast spiral, wide flute bits aid in chip ejection. High speed steel, 118°.
