AUTOTOOLHOME Electric Grinder Flexible Flex Shaft Rotary Tool Attachment 42" Length Fit All 1/8" Collet Maximum No Load Speed 35,000 rpm Comfort grip hand piece - allow finger tip control to cut, grind, sand, sharpen, polish and more 42" flexible shaft with keyless chuck Quick connect - easily attaches to rotary tool in seconds 1/8" connecting rod Fit all electric grinder