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carbide shaper cutters T.C.T finger joint cutters for woodworking Quick details: 1): Micro-grain carbide tips to make sure bits sharp and durable. 2): Cutting surface is finished, without burrs and skins char. 3): finger joint closely. 4): Thicker carbide tips can be re-ground. 5): Competitive price and short delivery time. Description: T.C.T Shaper cutters Made of 45#carbon steel, the cutting tips are Micro-grain Tungsten carbide. The welding type is silver welding or copper