R8 collets are one of the most common ways to securely hold a tool in a milling machine. The R8 system was introduced by Bridgeport Machine Company for use in its milling machines. It is now one of the most common ways to hold round shank tooling in a manual vertical mill regardless of origin.

Colton Industrial R8 collets are made using high grade tool steel and are hardened and polished. These collets are also extremely high precision with a best in class 5 year warranty. Having a set on hand saves you from having to shut down a job just because you do not have the right size. These collets are yet another example of Colton Industrial Tools living up to their motto of “Helping Makers Make Better.”

Features 

• Includes one (1) each of the following size 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8
  
• Industry leading TIR (total indicated runout) of .0005"
• 7/16-20 Drawbar thread
• Material: Hardened Alloy Steel 
• Mating surfaces precision ground
• Each collet laser marked with size
• Weight: 4.62 lbs.