HSS Step Drill Bitsstraight flute 3flat shankStep Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using...
Polycrystalline diamond compactCommon size: 803/908/1308/1313/1608/1613/1616/1908/1913/1916/1919Usage:1. For oil drilling2. For coal drilling3. For hard ma...
Casing Tubes:Coupled type casing tubes have a box thread at both ends and are connected together by a pin-to-pin coupling. This allows coupl...
Casing Tubes:Miracleland supplies Metric Casings, Flush-Jointed Casings and Flush-Coupled Casings.Casing thread: 4 threads per inch.Casing length: generally supplied with le...
Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to j...
Beijing superior Drilling Equipment Co., Ltd is a comprehensive enterprise set PDC bits, tricone bits production sales. The company was founded in 1989, covers an are...