This NSK attachment for Electer Emax and Rotus systems has a unique slim body making it ideal for cutting and grinding the bottom surface of deep ribs or holes. • Weight : 5.50 oz. • Wrench is not required to exhange the chuck. • Collet Chuck Standard Size : ø1/8" (CHM-3.175) • NSK Catalog Number: RE10235 Included Equipment: • Collet Chuck ø1/8" (CHM-3.175): 1 pc. • Wrench (7 x 5.1) RE10207: 1 pc. • Wrench (6 x 4.5) RE22001: 1 pc. • Pin Wrench (K-233) : 1 pc.