Collets, Collet Sets & Sleeves
Collets clamp round-shank tooling or bar stock directly against a taper or bore; sleeves and adaptors step a larger taper or bore down to a smaller shank size instead. The 11 types below cover ER, OZ, 5C, GSK and DMC collets alongside reduction, boring bar and Morse taper sleeves.
Shop By Collet Type
A collet only does its job if it matches two things: the taper or bore in your machine or toolholder, and the diameter of what you're clamping. Get the system wrong and the collet either won't fit or won't grip — there's no universal collet that works across different systems.
ER collets are the most common toolholding system on CNC mills and machining centres, running ER8 to ER40 and fitting standard ER collet chucks. 5C collets do the equivalent job for workholding — they clamp directly on a lathe spindle nose, collet block or fixture rather than sitting inside a separate toolholder, and are the standard choice where you need to grip round, hex or square bar stock concentrically for turning or secondary operations.
OZ, GSK and DMC collets are manufacturer-specific systems, each matched to its own collet chuck design and not interchangeable with ER or with each other — check the chuck before ordering a replacement collet. Morse taper sleeves and reduction sleeves solve a different problem: stepping a larger spindle or drill taper down to a smaller shank rather than clamping a workpiece or tool directly.
All held in UK stock. Order before 4pm and it ships same day. See the full Collets range for every type and size in stock.
