Mitee-Bite? OK-Vise? Clamp DK2-VT-TS Single Wedge, Tapped Jaw/Smooth Jaw, M12 x 1.75 Screw, 12,000 lbf Holding Force. This OK-Vise? with M12 screw is designed to be used with the OK-Vise? Multi-Rail in conjunction with Custom T-Nut # 47225. This OK-Vise? can also be used on the Heavy Duty T-Slot Clamp Base # 41000. This combo model come with one smooth through-hardened jaw and?another jaw with?M5 tapped holes,?making it quick and easy to use various additional pieces, which can be machined into different shapes. OK-VISE low-profile clamps expand when they are tightened down, simultaneously pressing the workpieces against the guide and preventing their movement. They are designed to take up very little space on the fastening base. Small in size, yet with an excellent clamping force, these clamps guarantee a holding capacity that clearly exceeds the load of machining forces.?Fastening with only one bolt ensures quick set-up times. Mitee-Bite? Part #47144