10Pcs BT40 Pull Stud Retention Knob 60 Degree Pull Stud Socket Drum Fit for Drill Retention Knob Socket

Specification:
Material: 40cr
A: 60 degree
D: 23 mm
d1: 15 mm
d2: 10 mm
L: 60 mm
L1: 35 mm
L2: 28 mm
T: M16
(The specific location is shown in the figure.)

Features:
1. The pull stud retention knob is made of 40cr, which is sturdy and durable, and extends the service life.
2. The BT40 pull stud retention knob is made by quenching, with high hardness and is not easy to wear.
3. The BT40 pull stud retention knob has stable quality and high concentricity. It has passed magnetic particle testing before leaving the factory.
4. The pull stud retention knob has optimized clamping groove, accurate fixation, increased friction and strong tensile capacity.

Package Includes:
10 x BT40 60 Degree pull stud retention knob