Cat50 Style C Pull Stud Retention Knob With Coolant Hole For Heavy Duty Machining 1-8 Inch Thread Alloy Steel Hardened To Hrc 58 Magnetic Tested Fits Haas Mitsubishi Toshiba Daewoo Okk Kitamura Model 6780-1057
✔️ Single piece, 1-8 inch thread, 3.355 inch length, hardened to HRC 58
This heavy-duty pull stud is a CAT50 style C retention knob designed for CNC milling and drilling centers. It includes a through-coolant hole and is built for rugged use with compatible brands such as Haas, Mitsubishi, Toshiba, Daewoo, OKK, Kitamura, Toyoda, and Mazak.
✅ Length: 3.355 in total
✅ Thread: 1-8 in
✅ Material: Alloy steel, heat-treated, hardened to HRC 58
✅ Magnetic particle tested for cracking
✅ Mating surfaces: Precision ground
✅ Coolant through hole: Through-hole included
✅ Fits: Haas, Mitsubishi, Toshiba, Daewoo, OKK, Kitamura, Toyoda, Mazak
💡 What is a pull stud retention knob used for in CNC machining?
This handy accessory keeps tooling secured in the spindle and supports quick changes across through-coolant setups.
- secure seating in CNC spindles
- quick change capability
- through-coolant compatibility
- precision-ground mating surfaces