Suitable for lathe center height 0.7 – 2.2″ (Top compound surface to lathe center line), such as: South Bend 13″, 14″ & 1307, Delta 14″, Logan 14″ Emco: Elnomat13S, Harrison: 11,12 &13″, Sheldon: 11 &13, Clausing: 1300 series, Monarch: 13, Nardini: MS1400 MS1600 Acer: 1340 and many other import lathes. Whole set includes one each of. 251-222 Wedge Type Tool Post. 250-201 Turning Tool Holder, use tool bit up to 5/8. 250-202 Boring, Turning Tool Holder, use tool bit up to 5/8″ and round shank tool bits up to1/2″. 250-204 Heavy Duty Boring Bar Holder, can use both 3/4 and 1 shank boring bars. 6 Pcs BXA 250-222 QUICK CHANGE WEDGE TOOL POST SET SERIES 10″ – 15″. 250-207 Parting Blade Tool Holder, use 5/8 high parting blades. 250-210 Knurling and Turning Tool Holder. Wedge type tool post are precision engineered to assure repetitive accuracy. Wedge type tool posts Have the Maximum ridigity to get the chatter free performance. No time wasted with shims. All working parts hardened and precision ground. Quick Change Tool Post. And our office is closed on Sunday and we apologize for the late reply during the holidays. We will do everything we can to give you a satisfying solution. We do our best to resolve any issue. So please talk with us and we will not let you down. FEEDBACK IS VERY IMPORTANT TO US.