The H.25 is a precision handpiece made for continuous production work. It has double shielded ball bearings and a heavier duty housing than our regular interchangeable handpieces. Comes installed with 1/8” (3.18mm) and 1/4” (6.35mm) collets, and pin and wrench for changing collets and accessories. Other fractional and metric collets are available separately and in Collet Set HP103000.