Material: High speed steel.
Overall length: 78mm.
Pilot length: 28mm (end of thread to end of pilot).
Pilot diameter: 1/4 inch.
1/2 UNF thread to accomodate any Ultracut holesaw with a 1/2 UNF threaded bore.
Shank type: 3/8 inch diameter with 3 flats to accomodate any 3 jaw chuck.
Shank Length: 34mm.