Browse Categories

Need Help?
email us:

Enter Code "FreeGround" at checkout for Free Ground Shipping on orders of $150 or more.
(Valid only on orders placed on the website.)

What you need to know to order Retention Knobs.

Please have as much of the following information available as possible before calling us.  Then call us at 239-314-4303 or email the information and your contact information to

This is what we need to know to help you cross reference the retention knob you have:

1.  Number of knobs required:

2.  Machine Make:

3.  Machine Model:

4.  Spindle Size:

5.  Max RPM:

6.  Tool Holder Thread:  Metric or English?

7.  Coolant through Spindle:  Yes or No

8.  Spindle Coolant High Pressure: Yes or No

9.  Does Retention Knob have an o-ring: Yes or No

10.  Location of O-ring if you answered "Yes" in #9.

11.  Pilot: Yes or No

12.  Any previously purchased retention knob information such as Manufacturer, Part Number and any notes.

Shopping Cart
Your cart is empty.

4 Credit Card Logos

Mailing Lists