{"product_id":"rockmore-t51-drop-centre-retrac-bits","title":"Rockmore T51 Drop Centre Retrac Bits","description":"\u003cp\u003eDrop centre retrac bits for T51 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. Diameters from 3-1\/2 in (89 mm) to 5-1\/2 in (140 mm). Hemispherical, semi-ballistic or conical carbide.\u003c\/p\u003e","brand":"Rockmore","offers":[{"title":"3-1\/2 in (89 mm) \/ Hemispherical, 6×9\/16 + 3×1\/2, 5 holes","offer_id":67689603072252,"sku":"T51-89BRTDC-2238","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Hemispherical, 8×1\/2 + 4×1\/2, 3 holes","offer_id":67689603105020,"sku":"T51-89BRTDC-4003","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Hemispherical, 8×7\/16 + 4×7\/16, 3 holes","offer_id":67689603137788,"sku":"T51-89BRTDC-2330","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Semi-ballistic, 6×9\/16 + 3×1\/2, 5 holes","offer_id":67689603170556,"sku":"T51-89BRTDCB-916","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Semi-ballistic, 8×1\/2 + 4×1\/2, 3 holes","offer_id":67689603203324,"sku":"T51-89BRTDCB-4004","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Semi-ballistic, 8×7\/16 + 4×7\/16, 3 holes","offer_id":67689603236092,"sku":"T51-89BRTDCB-909","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-1\/2 in (89 mm) \/ Conical, 8×1\/2 + 4×7\/16, 3 holes","offer_id":67689603268860,"sku":"T51-89BRTDCC-2511","price":0.0,"currency_code":"USD","in_stock":true},{"title":"3-11\/16 in (93 mm) \/ Semi-ballistic, 8×1\/2 + 4×1\/2, 3 holes","offer_id":67689603301628,"sku":"T51-93BRTDCB-3409","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4 in (102 mm) \/ Hemispherical, 8×9\/16 + 4×1\/2, 3 holes","offer_id":67689603334396,"sku":"T51-102BRTDC-2662","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4 in (102 mm) \/ Semi-ballistic, 8×9\/16 + 4×1\/2, 3 holes","offer_id":67689603367164,"sku":"T51-102BRTDCB-210","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4 in (102 mm) \/ Conical, 8×9\/16 + 4×1\/2, 3 holes","offer_id":67689603399932,"sku":"T51-102BRTDCC-010","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4-1\/2 in (115 mm) \/ Hemispherical, 8×9\/16 + 4×9\/16, 3 holes","offer_id":67689603432700,"sku":"T51-115BRTDC-2495","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4-1\/2 in (115 mm) \/ Hemispherical, 10×9\/16 + 5×1\/2 · T51-115BRTDC-3617","offer_id":67689603465468,"sku":"T51-115BRTDC-3617","price":0.0,"currency_code":"USD","in_stock":true},{"title":"4-1\/2 in (115 mm) \/ Hemispherical, 10×9\/16 + 5×1\/2 · T51-115BRTDC-4228","offer_id":67689603498236,"sku":"T51-115BRTDC-4228","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5 in (127 mm) \/ Hemispherical, 8×5\/8 + 4×5\/8, 3 holes","offer_id":67689603531004,"sku":"T51-127BRTDC-2663","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5 in (127 mm) \/ Hemispherical, 10×5\/8 + 5×5\/8 · T51-127BRTDC-3633","offer_id":67689603563772,"sku":"T51-127BRTDC-3633","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5 in (127 mm) \/ Hemispherical, 10×5\/8 + 5×5\/8 · T51-127BRTDC-4065","offer_id":67689603596540,"sku":"T51-127BRTDC-4065","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5-1\/2 in (140 mm) \/ Hemispherical, 8×5\/8 + 4×5\/8, 3 holes","offer_id":67689603629308,"sku":"T51-140BRTDC-2664","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5-1\/2 in (140 mm) \/ Hemispherical, 10×5\/8 + 5×5\/8","offer_id":67689603662076,"sku":"T51-140BRTDC-3634","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/9030\/2460\/files\/thb-t51-p32-20_b488d1c0-6ae2-4c50-9c76-4f7341c71b84.jpg?v=1791836003","url":"https:\/\/frankdrill.com\/products\/rockmore-t51-drop-centre-retrac-bits","provider":"FrankDrill","version":"1.0","type":"link"}