MAS BT50 90°Retention knob Pull Stud For Tool Holder

  • MAS BT50 Retention knobs for BT50 Tool Holder
  • Works on all BT 50 machines
  • For MAS BT50 Spindles
  • Threaded is M24 X3
  • All critical surfaces precision ground
  • Made from alloy steel hardened to 54 – 56rc
  • Thru twice heat treatment of each pull stud
  • Angle degree have 45,60 and 90 available
  • Concentricity is less than .0005 at collet face
  • Coolant available
  • Rear thread for pull stud is M24 X 3
  • Oxide black
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      MAS BT50 Retention knob Pull Stud For Tool Holder

High-quality low-carbon alloy steel is used for thread processing after quenching.
This type of stud shank has high hardness, wear-resistance, and long service life.
The hardness from the surface of the nail to the core gradually decreases, and the impact resistance is strong.
The size standard is suitable for high-end tool holders; the appearance is all black,
with high internal quality and Good rust effect, widely used abroad, a key recommendation

 We accept Custom OEM Order 


          MAS BT50 Retention knob Pull Stud For Tool Holder 403-1982

BT50 Product NO. BT50 45 60 90 degree available
Insulation material Hardened Alloy Steel
Hardness HRC 55
Thread h6  M24 X 3
Color Oxide Black
 Standard Spindle  BT50 Taper
Manufacture IGSTOOL

Drawings &  downloads


All BT Retention Knobs Pull Stud available

We do have 11 steps to checking retention knob to keep each pull stud in high-performance products on your tool holder

From material -production online -Longlife time testing -resistance testing and run out testing

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