规格范围：D3-D20,加工深度≤1.5倍径。
特点说明：大芯厚；小螺旋角，高刚性，定心好，外圆精度高，材质优异，特色涂层，超强耐磨。
适用范围：用于HRC40-50，高碳钢，合金钢，淬火钢等材料，具有优异的钻孔精度，孔精度≤IT7，圆度≤0.005，钎具行业应用广泛。
客户需要提供的资料：被加工材料及硬度。直径大小，表面粗糙度要求、柄部形式和其他特殊要求。可根据客户需求非标定制。
Specification: D3-D20, processing depth≤1.5XD.
Features: Large core thickness, small spiral angle, high rigidity, good centering, precision outer circle, excellent materials, special coating, strong abrasion outer circle, excellent materials, special coating, strong abrasion resistance.
Application: Suitable for HRC40-50, high-carbon steel, alloy steel, harden steel and other materials, with excellent hole-drilling precision, the hole precision is≤IT7, the roundness is≤0.005, is widely used in the drilling industries.
Information that customer needs to provide: Processed materials and hardness, diameter, surface roughness, shank types and other special requirements.
