A 4 jaw midi scroll chuck with lever adjustment. The serrated jaws, fitted as standard, can grip both internally or externally.
The chuck fits directly onto 1" x 8tpi threads or 3/4" x 16tpi using the insert included.
Supplied with 2 levers, wood screw & 3/4" x 16tpi insert.

Optional Jaw sets for W825;
W830JA Pin Jaws - Serrated exterior, smooth interior. Expands from 22mm to 48mm, contracts from 34mm to 8mm.
W830JB Stepped Jaws - Serrated exterior and interior. Expands from 8/20mm to 34/46mm, contracts from 29mm to 3mm
W830JC Large Jaws - Serrated exterior and interior. Expands from 37mm to 63mm, contracts from 53mm to 27mm