Thes accessory jaws are Round Jaws, the have serrated edges on both sides and designed specifically to fit the Nexus 3 chuck.
The comprise a Set of 4 optional jaws for the Nexus 3 geared scroll chuck. These parallel sided jaws have a serrated edge both internally and externally for maximum gripping of both recesses and spigots. Jaw projects 14mm from the base plate.
Expands from 46mm to 73mm
Contracts from 59mm to 32mm