Indexa-Seiki ER Collets are available in the in a range of sizes to maximise efficiency in most applications, they are manufactured from hardened and tempered high alloy steel. All supplied in hardwearing bench cases with protective foam inserts.

Conform to DIN 6499.
Up to 10.0mm - 0.015mm TIR.
11.0 to 18.0mm - 0.015 to 0.020mm TIR.
19.0 to 26.0mm - 0.015 to 0.020mm TIR.

For all technical and dimensional specifications please refer to our catalogue.

Indexa-Seiki ER collets are the most versatile toolholding system for any operation that utilises a round shank cutting tool in a machining centre. Typical applications include drilling, milling, tapping, reaming and boring. 

When Indexa-Seiki ER collets are used with round shank cutting tools the collet chucks centralise the cutting tool and if all the ER system components have been maintained correctly, this should result in increased tool life, higher feed rates, better work piece accuracy and enhanced work piece finish.