T.J. Davies Company began over thirty years ago as a blue label supplier of tool holders and tool holder components to the major rotary tooling manufacturers. 

For the last nineteen years, we have exclusively manufactured our own line of retention knobs for direct sale and distribution. Our manufacturing process exceeds industry standards.

The new machines have higher horsepower, more rigidity, very high RPMs. It's more critical to select a knob made to the highest quality standards.