Chuck for drill bit has an industrial quality with extra high speed accuracy and balanceFeatures 10000 revolutions per minute maximum speedFor drill shank measures 1/64 inch to 15/64 inch sizeincludes thread measures 3/8 inch for MICROMOT bench drill TBM 220
Chuck for drill bits up to 15/64" for TBM 115
Brand: Proxxon, Model: 28122, Color: Silver