ISO standard brazed tips,tips as per national/trade standard(A .B.C.D.E.G.K) Non-standard tips(JIS standard)(02,03,04,05,06,07.08series) 1000-7000type series A1 type for making external turning tools,boring tools and grooving tools A2 type for boring cutter and facing tool A3 type for facing turning tool and external turning tool A4 type for external turning tool,boring and turning tool B3 type for making convex turning tool B4 type for making concave turning tool and wheel edge turning tool C1 type for making threading tool C2 type for making fine turning and trapezoid thread turning tool C3 type for maker cut off and grooving tool C4 type for making V-belt wheel grooving tool