Complete Tool Supply
TOOLING SOLUTIONS FOR AMERICA'S MACHINISTS

Retention Knob HQ

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CAT 40 RETENTION KNOBS

CAT 40 RETENTION KNOBS - PROUDLY MADE IN OHIO


CAT 50 RETENTION KNOBS

CAT 50 RETENTION KNOBS - PROUDLY MADE IN OHIO


BT 40 RETENTION KNOBS

BT 40 RETENTION KNOBS - PROUDLY MADE IN OHIO


BT 50 RETENTION KNOBS

BT 50 RETENTION KNOBS - PROUDLY MADE IN OHIO



Toolholder “pull studs,” or retention knobs, are meant to be replaced. Inspect and Replace them regularly.


Watch for damage. In particular, watch a retention knob for damage under the head, where the gripper fingers or balls make contact.
Depressions, cracks and scuff marks are all danger signs. A small amount of wear on knobs can significantly reduce the drawbar force.
Damaged knobs can result in damage to the gripper mechanism. However, even if knobs show no damage,they should be replaced within 2 years. This replacement represents a cheap insurance policy for an expensive machine tool.


Retention Knob HQ proudly distributes Proven Quality Retention Knobs - 100% manufactured in USA by TJ Davies Co.(Chagrin Falls, OH)



About Our Supplier - TJ Davies Co. (in the owner's words)


Our family-owned and operated company was founded in 1965 as Deb-Sher Machine.
Since 1975, T. J. Davies Company has been manufacturing our own line of retention knobs.
Our high-quality steel is rolled in the USA, and all manufacturing is done in our plant located in Chagrin Falls, Ohio.
Our retention knobs are known throughout the industry as second-to-none, and they can be easily recognized in their famous blue tubes.
My Dad, Thomas Jared Davies passed away last year (2019) so I am second generation; we are now certified as a women owned business.