BT Retention Knobs

BT Coolant Thru Retention Knobs

Please make sure that the Retention Knob you order is the correct one for your machine. Using the wrong Retention Knob can cause damage to your machine spindle, the tool holder, and may cause a safety hazard.

Features:

  • All mating surfaces precision ground
  • Manufactured to the highest standards
    for maximum safety and long life
  • Hardened for maximum longevity

Precision Knobs

BT Coolant Thru Retention Knobs Diagram

Coolant-thru Knobs

Related Links:
Retention Knobs Sockets

BT Retention Knobs

Part No. Description
Ø
D
d1
d2
d3
L
I1
l2
T
17801 BT 30 - 45°
45°
16.5
11
7
12.5
43
23
18
M12
17803 BT 40 - 45°
45°
23
15
10
17
60
35
28
M16
17834 BT 40, ANSI, metric thread
45°
23
18.8
12.5
12.4
38
16
11
M16
17805 BT 50 - 45°
45°
38
23
17
25
85
45
35
M24
17806 BT 30 - 60°
60°
16.5
11
7
12.5
43
23
18
M12
17808 BT 40 - 60°
60°
23
15
10
17
60
35
28
M16
17810 BT 50 - 60°
60°
38
23
17
25
85
45
35
M24
17812 BT 30 - 90°
60°
16.5
11
7
12.5
43
23
8
M12
17814 BT 40 - 90°
60°
23
15
10
17
60
35
28
M16
17816 BT 50 - 90°
60°
38
23
17
25
85
45
35
M24

BT Coolant Thru Retention Knobs

Part No. Description
Ø
D
d1
d2
d3
d4
L
I1
I2
T
17817 BT 30 - 45° coolant
45°
16.5
11
7
12.5
4
43
23
18
M12
17818 BT 40 - 45° coolant
45°
23
15
10
17
4
60
35
28
M16
17820 BT 40 - 60° coolant
60°
23
15
10
17
4
60
35
28
M16
17822 BT 40 - 90° coolant
90°
23
15
10
17
4
60
35
28
M16
17824 BT 50 - 45° coolant
45°
38
23
17
25
5
85
45
35
M24
17826 BT 50 - 60° coolant
60°
38
23
17
25
5
85
45
35
M24
17828 BT 50 - 90° coolant
90°
38
23
17
25
5
85
45
35
M24