SM-5 D 76 bit for core drilling
The carbide drill bit "SM-5" is designed for core drilling of low-abrasive, monolithic and intermittent rocks of V-VI drillability category: clayey and sandy shales, limestones, dolomites and serpentinites. To increase drilling speed, the cutters are located at different heights. The "SM-5" bit is equipped with special flushing windows and grooves for effective removal of cuttings into the annulus. Rock category: V-VI Crown ring material: steel 45, GOST 1050-88, seamless pipe, GOST 8732-78 Diameter: 76-172 Cutting body: VK6 alloy, GOST 3882-67
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