Collet Chuck Holders
A collet chuck is a type of chuck that forms a collar around a tool and applies a high static friction force, holding the object firmly and in accurate alignment. The "ER" collet system, developed and patented by Rego-Fix in 1973 is the most widely used collet system in the world today. The ER line consist of ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The numbers in the series are the inner diameter of the collet. RedLine Tools offers a full line of ER collet chuck holders that are balanced to G2.5 @ 18,000 rpm.
- Small diameter nose well-suited for working in close quarters
- Increased flexibility for milling, drilling, and reaming
- Flush precision collet nut, grips tool close to cutting edge for accuracy and rigidity
- Concentric to .0002" TIR puts tool precisely on spindle center line
- AT3 or better shank taper allows for accurate, rigid tool holder-to spindle mount
- Wide range collets reduce collet and tool holder inventories
- Fully ground flange and V-groove is easy on tool changers for less spindle and changer maintenance
- Through spindle coolant standard
The TG (Tremendous Grip) collet system developed by Kennametal, is an alternative selection if you need extra grip for the application. The key reason for the RedLine Collet Systems' accuracy and gripping power is a unique flush nut design. It incorporates a rotating ball assembly producing a “radial float.” This forces the collet to self-center for maximum grip, highest precision, and minimum tool wear.
- ER collets have a larger gripping capacity than TG collets.
- ER collets are less expensive than TG collets.
- TG have a higher gripping force than ER collets.
- Flexibility to mill, drill, and ream
- AT3 or better shank taper allows for accurate, rigid tool holder-to spindle mount
- Less tool wear and replacement means less scrap
- Fully ground flange and V-groove is easy on tool changers for less spindle and changer maintenance
The TG (Tremendous Grip) collet system developed by Kennametal, is an alternative selection if you need extra grip for the application. The key reason for the RedLine Collet Systems' accuracy and gripping power is a unique flush nut design. It incorporates a rotating ball assembly producing a “radial float.” This forces the collet to self-center for maximum grip, highest precision, and minimum tool wear.