TRUSCO SUS ER20 collet, gripping diameter 8.0-8.5mm SUSER20-085 1 pc

Catalog number: SUSER20-085 Features: ●This is a stainless steel type of ER collet, which is the standard in the world. ●Because it is stainless steel, it is resistant to rust and is ideal for use in harsh environments where rust is likely to occur. ●High precision with 3D tip core runout accuracy of within 5μm. Applications: ●For drilling, end milling, reaming, and tapping in environments where rust is likely to occur. ●For electrical discharge machining. Specifications: ●Gripping diameter (mm): 8.0-8.5 ●Outer diameter (mm): 21.0 ●Total length (mm): 31.5 ●Standard: ER20 ●Outer diameter x total length (mm): 21.0 x 31.5 ●Concentricity (runout accuracy): Within 2μm ●3D tip core runout accuracy: Within 5μm ●World standard 16° taper collet (8° on one side) ●DIN6499B ●ISO15488B Material/Finish: ●Stainless steel (SUS420)