{"product_id":"graph-tech-prn-2731-b0-ratio-tuned-machine-heads-classic-style-black","title":"Graph Tech PRN-2731-B0 Ratio Tuned Machine Heads (Classic Style\/Black)","description":"\u003cp class=\"prodcutDescriptionLong\"\u003e\u003cspan\u003eThe PRN-2721 and PRN-2731 are right-handed sets of RATIO® calibrated machine heads for electric guitar that use 6-in-line tuners. It has a two-pin housing that can be used as is or with our patented InvisoMatch mounting plates. 4 different sets of brushed aluminum InvisoMatch mounting plates are included to make installation on most guitars quick and precise using your existing screw mounting holes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"prodcutDescriptionLong\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul id=\"itemBullets\"\u003e\n\u003cli\u003e\u003cspan\u003ePatented RATIO gear technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRATIO - Calibrated machine heads incorporate different string gauges into the tuning equation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrom low E to high E 39:1, 24:1, 20:1, 35:1, 20:1, 12:1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWe have balanced the gear ratios at each chain simplifying the adjustment process\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith RATIO®, a half turn is a half step\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEach string responds the same to any tuning setting. Predictable, precise tuning on every string\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGear ratio: unique for each string position - one turn-one tone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRequired dowel hole diameter: 13\/32\" (10 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRope Post Diameter: 0.236\" (6mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLength from rope post to rope hole: 0.890\" (22.6 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight per single machine head: 0.066 lb (30 g)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight per set of six: 0.393 lb (179 g)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRope diameter up to 72 gauge\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes 6 machine heads, mounting screws and sockets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes 4 free sets of aluminum mounting plates\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Graph Tech","offers":[{"title":"Default Title","offer_id":41688593629263,"sku":"PRN-2731-B0","price":141.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9466\/9382\/files\/PRN-2731-B0_lg.jpg?v=1715716220","url":"https:\/\/shop.musicredone.com\/products\/graph-tech-prn-2731-b0-ratio-tuned-machine-heads-classic-style-black","provider":"RedOne Music Canada","version":"1.0","type":"link"}