{"product_id":"grover-mid-size-rotomatics-machineheads-6-in-line-12-string-black-chrome","title":"Grover Mid-Size Rotomatics Machineheads ~ 6 in-line ~ 12-String ~ Black Chrome","description":"\u003cp\u003e6-in-line, set of 12.\u003cbr\u003e\u003cbr\u003eThe 305 Series is made with the same quality as all Rotomatic® models. Slightly larger than the Mini Rotomatics®, the mid-size series features an 18:1 gear ratio for smoother, more precise tuning. This compact machine head is perfect for use on smaller and in-line headstocks.\u003c\/p\u003e\n\u003cp\u003eSealed-in, lubricated gears\u003cbr\u003e18:1 gear ratio\u003cbr\u003e25\/64” post hole\u003cbr\u003ePost length to hole: 22.4mm\u003cbr\u003eOverall post length: 27.5mm\u003cbr\u003eWeight per pc\/per set: 1.2oz\/7.2oz\u003cbr\u003eMax. string gauge: .064”\u003cbr\u003eHardware included (bushings, washers, screws)\u003cbr\u003eDrop-in replacement for: 406 Series\u003c\/p\u003e\n\u003cp\u003eIncludes all necessary mounting hardware and the famous Grover lifetime guarantee.\u003c\/p\u003e","brand":"Grover","offers":[{"title":"Default Title","offer_id":51855949758793,"sku":"305BC12","price":166.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/9330\/0809\/files\/305BC12_1_40f4bf05-f74b-4225-8817-52a81ff0a377.jpg?v=1741344523","url":"https:\/\/jhs-b2b-test.myshopify.com\/products\/grover-mid-size-rotomatics-machineheads-6-in-line-12-string-black-chrome","provider":"JHS B2B 2025","version":"1.0","type":"link"}