Tapered 7 Degree 7 Buttons Carbide Button Bits - Buy
1) Tapered connection: 4,6,7,11,12 degree. 2) Alloy steel. 3) Suitable carbide tips. 4) Chisel bit diameter: 20-60mm . 5)Water Hole:2-3 . Our products chisel type bits have approved ISO9001:2000 Quality System and inspection of . National Rock Drilling Tools Inspection Center.All the products have assured by China People . Insurance Company. Website:www.qianju.cn
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