... has many specialties as follows: light and pen shaped design, small volume, high speed of rotation, low noise, large torque, low ... , glass, crafts, accessories, circuit board extensively such as shoe mould, wheel mould, pen mould, household mould, etc. In a word, it ... 11.123N-head 12.093N-head 13.3BSN-head 14.small filling piece15.o-ring circle(big) 16.o-ring circle ...