The H.15 Handpiece has hammering rather than rotary action for use at low speed (0-5,000 rpm) by jewelers for stone setting and decorative work. Comes with an anvil point (HP10177). It requires periodic lubrication. Hammer has 1/32stroke and its impact can be adjusted from light to heavy by turning the silver knurled adjusting ring.

Foredom #15D Handpiece with duplex spring