{"product_id":"foredom-h15d-hammer-handpiece-duplex-spring","title":"Foredom H.15D Hammer Handpiece with Duplex Spring","description":"\u003cp\u003eA hammer handpiece drives a reciprocating tip instead of a spinning bur, which is what stone setting and texturing work at the bench requires. The Foredom H.15D Hammer Handpiece with Duplex Spring delivers that reciprocating action at a more accessible price point than the top-of-the-line Swiss-made Badeco reciprocating hammer handpiece, and it is supplied with a hardened tip. Run it at low speed only, 0–5,000 RPM, on a Low Speed High Torque Foredom motor (Otto Frei item 134.159).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReciprocating action handpiece, not rotary\u003c\/li\u003e\n\u003cli\u003ePrimarily used for stone setting, and also suitable for texturing applications\u003c\/li\u003e\n\u003cli\u003e1\/32\" stroke length\u003c\/li\u003e\n\u003cli\u003eImpact force adjustable from light to heavy by rotating the silver knurled adjusting ring\u003c\/li\u003e\n\u003cli\u003eSupplied with a hardened tip\u003c\/li\u003e\n\u003cli\u003eTip threads are 4-48 US thread\u003c\/li\u003e\n\u003cli\u003eDuplex spring connection to the flex shaft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eThe 4-48 US tip thread accepts popular Badeco tips, and Foredom hammer tips are interchangeable with the Swiss-made Badeco hammer handpiece. The handpiece also takes the Foredom Pavé Point diamond tip accessory (Otto Frei part number 153.195) for bright-cut stippled texturing effects, and the Foredom Carbide Tip (HP10212, Otto Frei part number 134.301) for marking or inscribing hardened steel. It must be driven by a Low Speed High Torque Foredom motor (Otto Frei item 134.159).\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse at low speed only (0–5,000 RPM).\u003c\/strong\u003e The pedal controls speed, not power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis handpiece must be run using a Low Speed High Torque Foredom motor (item 134.159).\u003c\/strong\u003e Using the correct motor will extend the life of the duplex spring.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDuplex springs and all related USA-made duplex spring connection parts carry no warranty.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDo not bend the duplex spring beyond 45 degrees during use. Bending beyond this angle or improper detachment from the flex shaft can damage the spring.\u003c\/li\u003e\n\u003cli\u003eDuplex springs can also fail during normal use.\u003c\/li\u003e\n\u003cli\u003eIt is strongly recommended that you purchase additional inner duplex springs and learn how to replace them. The inner duplex spring is the most common part to fail.\u003c\/li\u003e\n\u003cli\u003eReplacement inner duplex springs are available individually (Otto Frei part number 134.279, Foredom HP76) or in a pack of 12 (Otto Frei part number 134.280, Foredom HP76B).\u003c\/li\u003e\n\u003cli\u003eRequires periodic lubrication with MS10005 Handpiece Lube (Otto Frei part number 134.343).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Foredom","offers":[{"title":"Default Title","offer_id":43583239454934,"sku":"134.235","price":228.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/foredom-h-15d-hammer-handpiece-with-duplex-spring-otto-frei.jpg?v=1719956720","url":"https:\/\/www.ottofrei.com\/ja\/products\/foredom-h15d-hammer-handpiece-duplex-spring","provider":"Otto Frei","version":"1.0","type":"link"}