CNC Router Collet
Precision ER-series CNC router collets (ER11, ER16, ER20, ER25) with low runout and high clamping force — ensures secure tool holding at high spindle speeds for accurate, chatter-free machining.
Price varies by collet series and quantity. GST invoice · quotation within 24 hours.
Secure grip, zero runout
The collet is the critical link between your spindle and cutting tool. A worn or low-quality collet introduces runout that causes chatter, poor surface finish and premature bit wear. Our precision CNC router collets are manufactured to tight tolerances with a TIR of less than 0.01 mm for vibration-free machining.
We stock the full ER-series range — ER11, ER16, ER20 and ER25 — in all standard bore sizes from 1 mm to 16 mm. Spring-steel construction provides uniform clamping pressure around the entire tool shank, while the precision-ground taper ensures full contact with the spindle nut for maximum rigidity.
Available individually or as complete sets with collet nut. Suitable for all CNC routers, engraving machines and milling spindles using standard ER collet systems.
| Collet series | ER11, ER16, ER20, ER25 |
|---|---|
| Bore sizes | 1 mm – 16 mm (in 0.5/1 mm steps) |
| Runout (TIR) | < 0.01 mm |
| Material | Spring steel, hardened & ground |
| Clamping range | 1 mm collapse per collet size |
| Max RPM | 30,000+ RPM (balanced) |
| Collet nut | Available separately or as set |
| Compatible spindles | All ER-series spindle noses (Chinese, HSD, Colombo etc.) |
| Brand | Success Technologies |
Ultra-low runout
TIR < 0.01 mm for chatter-free cuts and extended tool life.
High clamping force
Spring-steel slits provide uniform 360° grip — no tool pullout at aggressive feeds.
Precision-ground taper
Full taper contact with spindle nut for maximum rigidity and concentricity.
All sizes in stock
ER11 through ER25, bore sizes 1–16 mm — no waiting for special orders.
High-RPM balanced
Rated for 30,000+ RPM — safe for high-speed spindles.
Universal compatibility
Fits all standard ER-series spindles regardless of machine brand.
Applications of CNC Router Collets
CNC wood routers, engraving machines, stone CNC machines, mould-making machines and any spindle using the ER collet system.
