• Allowable Motor Speed: 50,000 rpm • Spindle Accuracy: Within 1 µm • Standard Size Collet Chuck (CHB-3.175): ø1/8" • Weight: 11.64 oz. • NSK Catalog Number: AS81835P Included Equipment: • Collet Chuck ø1/8" (CHB-3.175): 1 pc. • Wrench (6.1 x 8) Z103117: 1 pc. • Wrench (10 x 10) RA10406: 1 pc. • Wrench (22 x 27) RA12045: 1 pc. Optional Equipment: • Collet Chuck (CHB-[][]): ø2.0, ø3.0 mm, ø1/8", ø4.0 mm