Three jaw standard scroll chuck with two sets of hard jaws.
Body : High quality cast iron with all bearing surfaces precision ground.
Scroll Plate : Drop forged in fine alloy steel, carefully case hardened. Thread flanks ground on both sides.
Jaws : Made of alloy case steel. Teeth and guildes hardened and fully ground on both sides.
Pinions : Made of alloy case steel, hardened and ground.
Bore = 20mm
Mounting = 1.1/8 x 12 TPI Myford
Part Number 7-628-107 3284-100