攻牙钻孔径之对照表

攻牙前钻头之孔径对照表(M/M)英制牙钻头孔径公制牙钻头孔径公制牙钻头孔径公制牙钻头孔径W 1/16-60 1.3M1*0.250.78M4*0.75 3.31M8*0.757.40 W 3/32-48 1.9M1.2*0.250.98M4.5*0.5 4.12M8*17.20 W 1/8-40 2.6M1.4*0.3 1.14M4.5*0.75 3.89M8*1.25 6.90 W 5/32-32 3.2M1.6*0.35 1.32M5*0.5 4.62M9*0.58.60 W 3/16-24 3.8M1.7*0.35 1.42M5*0.8 4.35M9*0758.40 W 7/32-24 4.5M2*0.4 1.67M5*0.9 4.17M9*18.20 W 1/4-20 5.1M2.3*0.4 1.97M5.5*0.5 5.12M9*1.257.90 W 5/16-18 6.6M2.5*0.45 2.12M5.5*0.75 4.90M10*0.59.60 W 3/8-168.0M2.6*0.46 2.22M5.5*0.9 4.67M10*0.759.40 W 7/16-149.4M3*0.35 2.72M6*0.5 5.60M10*19.20 W 1/2-1210.7M3*0.5 2.59M6*0.75 5.43M10*1.259.00 W 9/16-1212.3M3*0.6 2.42M6*1 5.19M10*1.58.70 W 5/8-1113.7M3.5*0.35 3.22M7*0.5 6.60M11*0.510.55 W 3/4-1016.7M3.5*0.6 3.05M7*0.75 6.40M11*0.7510.40 W 7/8-919.5M4*0.5 3.62M7*1 6.20M11*110.20 W 1-822.4M4*0.7 3.43M8*0.57.60M11*1.259.80

M/M)

公制牙钻头孔径

M11*1.59.70

M12*0.511.55

M12*111.20

M12*1.2511.00

M12*1.510.70

M12*1.7510.50

M13*112.05

M13*1.511.55

M14*113.20

M14*1.512.70

M14*212.30

M15*114.20

M15*1.513.70

M16*115.20

M16*1.514.70

M16*214.30