GS Tooling 337506 ER40 7.5-8.0mm (0.3149 ) Collet

• Type: ER Collet • Collet Series: ER40 • Size Range (Inch): 7.5-8 • Size Range (Decimal Inch): .295-.314 Our ER collet system is made of special elastic steel material under excellent heat treatment and precise grinding process so it has precise accuracy powerful clamping ability and is durable. This collet can clamp for a specific standard size and its next size. It can be widely used for boring milling drilling and tapping as well as for grinding operation and is available for all sizes.