梯形螺距规

符合企业标准

材质: 不锈钢

精度: 梯形螺纹30°: ±0.02mm(螺距2~3mm), ±0.03mm(螺距4~7mm), ±0.04mm(螺距8~16mm), ±0.05mm(螺距20mm); 梯形螺纹29°: ±0.05mm(1TPI), ±0.04mm(1 1/3~2TPI), ±0.04mm(2 1/2~3TPI), ±0.03mm(3 1/2~8TPI), ±0.02mm(9~12TPI)