Precise 3-Jaw Self-Centering Plain Back Lathe Chucks

• Made of high quality semi-steel.
• Hardened and ground.
• Lathe chuck wrench is supplied with the chuck.
• 2 Sets of hard jaws, both internal and external, are included.
• 1 Set of 3 Mounting Screws Included

Item No. D D1 D2 D3 h H Screws Max. RPM T.I.R. 3900-0031 3″ 2.17″ 2.6″ 0.630″ 0.14″ 1.97″ 3-M6 4000 .003″ 3900-0032 4″ 2.83″ 3.3″ 0.866″ 0.14″ 2.36″ 3-M8 3500 .003″ 3900-0033 5″ 3.94″ 4.17″ 1.181″ 0.14″ 2.36″ 3-M8 3000 .003″ 3900-0035 6″ 5.15″ 5.6″ 1.575″ 0.20″ 2.56″ 3-M8 2500 .003″ 3900-0037 8″ 6.50″ 7.1″ 2.559″ 0.20″ 2.95″ 3-M10 2000 .004″ 3900-0038 10″ 8.11″ 8.9″ 2.756″ 0.20″ 3.15″ 3-M12 1600 .004″ 3900-0040 12″ 10.71″ 11.65″ 3.937″ 0.48″ 3.54″ 3-M16 1200 .005″ 3900-0039 15″ 12.80″ 13.78″ 5.709″ 0.24″ 6.13″ 3-M16 1200 .005″