CAT 40 Standard Retention KnobsRetention knobs, also known as pull studs, allows you to mount a tool holder to the machine spindle. Using a low quality retention knob can lead to poor tool life and run out, which is all of our retention knobs have threads that are rolled for strength and durability. We have standard style knobs for most machines in stock, as well as coolant thru and many special designs available and able to be shipped out same day. We are also able to manufacture

All of our chamfer tools use the same size

Each ER16 straight shank collet chuck extension comes with an ER16 collet nut

these can also be used for a variety of processes

Manufactured in accordance with AISI / ASME B5

ER25 straight shank collet chuck extension are available with projections of 4

Each ER25 straight shank collet chuck extension comes with an ER25 collet nut

Tapers are held to AT3 and cavities are concentric within

collet chuck extensions

Our shell mill holders are designed to hold shell mill cutters for applications from fine to rough milling

Our ER11 rigid tap collets are for use with tap sizes ranging from #0 to ¼”

Our end mill holders are designed with the user in mind

Projection lengths range from 2 to 6 inches