Two-Piece Reversible Jaws; Each jaw is composed of top and bottom "master" jaw; Jaws can be easily reversed for extended clamping range; American Standard Tongue and Groove Style; ISO3442
Highly durable; Steel inner mechanisms are quench hardened to increase toughness
Plain back; Requires a fitted backing plate to mount to your lathe's spindle; CME fully machined backing plates are available
6 5/16" Body Diameter; 1 3/4" Through-Hole Diameter; For 0.12" to 5.71" Workpiece OD; For 1.97" to 6.3" Workpiece ID
5.12" Registration Diameter; 0.2" Registration Depth; Rear mounting holes are positioned on a 5.59" diameter circle