NCK-G3.75 3.75" 4 Jaw Key Self-Centering Chuck, Thread 1"X8TPI, with NCK-3.75Z-DJDD Dovetail Jaws, Wood Screw, Two Nylon Washers, T Handle Allen Key 5.5" Series Chuck & Jaws 5mm thick inserts with M4X8

5mm thick inserts with M4X8 screw

The blade is 11mm arc square and 2mm thick

Cryogenically treated edge-holding ability

Fits MT2 headstock and tailstock spindles

NCK-G3.75 3.75" 4 Jaw Key Self-Centering Chuck, Thread 1"X8TPI, with NCK-3.75Z-DJDD Dovetail Jaws, Wood Screw, Two Nylon Washers, T Handle Allen Key 5.5" Series Chuck & Jaws 5mm thick inserts with M4X8Jaws are compatible with the chucks: Super NOVA2, G3 Nova, Robert Sorby Patriot, Record Power SC3, Record Power SC4.(All listed chucks require our NCK JS8 M6 M6x12mm jaw fixing screws to be used) The tightening mechanism provides additional grip strength to the workpiece. The dovetail jaw can expand with much greater gripping power with outside grip range from 1 1 4 to 2 1 2 inches and inside grip range from 1 3 4 to 3 1 8 inches. 1 x 8 TPI thread is