ER 20 ExtensionsER20 straight shank collet chuck extension are available with projections of 4, 6, or 8 inches and diameters ranging from . 75 inch up to 1. 25 inches. Each ER20 straight shank collet chuck extension comes with an ER20 collet nut. Collet chucks, collets, and additional collet nuts available for sale and same day shipment.

the outside taper and inside taper are concentric within

The number shown on the collet is the largest size that particular collet can hold

Offering a large bearing surface

hardened alloy steels for long lasting durability

Our carbide insert chamfer tools are capable of chamfering a small hole down to

Our ER16 rigid tap collets are for use with tap sizes ranging from #0 to ⁵⁄₁₆”

including deburring and V-cuts

7500 inches or in metric sizes from 3mm up to 20mm

Our ER25 collets have a capacity ranging from

Our outside taper and inside taper are concentric to within

Our ER11 rigid tap collets are for use with tap sizes ranging from #0 to ¼”

All collet chuck adapters come with a collet nut