33 - 152 mm Diameter Mining Bits For Granite / Marble / Sandstone / Limestone Mining Object

Fracture-proof and wear resistant carbide tip High-quality soldered connection between tip and shaft Large base diameter to protect the cutting tool holder Pre-tensioned spring sleeve to reduce wear in the receiving bore Wear plate to protect the cutting tool holder Long shaft to protect the receiving bore High quality material from Valin Group Guaranteed welding process(full welding) Optimized teeth angle Specialized teeth arrangement Movable pilot holder(easy to replace