An R8 collet is a specialized clamping device used in machining and milling. It is designed to hold workpieces securely in place, allowing for precise cutting, shaping, and drilling operations. The “R8” designation refers to the taper size of the collet, which is commonly found on milling machines.

R8 Collets in round sizes are 1/16" to 7/8" in 1/32" increments, or 3mm to 22mm in 1mm increments. Our R8 Collets allow for more rapid tool changes, and provide an inexpensive and accurate tool holding method.

ER32 Collets- ER32 Standard Collets Our ER32 collets have a capacity ranging from . 0937 - . 7500 inches or in metric sizes from 3mm up to 20mm. The number shown on the collet is the largest size that particular collet can hold, but it can be tightened to a smaller size.