{"product_id":"rockmore-xt51-drop-centre-retrac-bits","title":"Rockmore XT51 Drop Centre Retrac Bits","description":"\u003cp\u003eDrop centre retrac bits for XT51 drill strings. A drop centre drills straighter holes in medium to hard rock. Retrac skirts help in broken ground, keep holes straighter and make the bit easier to retrieve. Diameter 3-1\/2 in (89 mm). Hemispherical, semi-ballistic or conical carbide.\u003c\/p\u003e","brand":"Rockmore","offers":[{"title":"Hemispherical, 8×7\/16 + 4×7\/16","offer_id":67689608577276,"sku":"XT51-89BRTDC-3421","price":0.0,"currency_code":"USD","in_stock":true},{"title":"Semi-ballistic, 8×7\/16 + 4×7\/16","offer_id":67689608610044,"sku":"XT51-89BRTDCB-3562","price":0.0,"currency_code":"USD","in_stock":true},{"title":"Conical, 8×7\/16 + 4×7\/16, 5 holes","offer_id":67689608642812,"sku":"XT51-89BRTDCC-3297","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/9030\/2460\/files\/thb-xt51-p34-7_21d99f8a-5c18-4d3e-9171-11842bf9cfea.jpg?v=1791836137","url":"https:\/\/frankdrill.com\/products\/rockmore-xt51-drop-centre-retrac-bits","provider":"FrankDrill","version":"1.0","type":"link"}