Referensi diameter lubang dasar ulir
＃.Metric general screw thread
Symbol of thread Drill bit Dia.
ASP60C Carbide
M1.0 *0.25 0.75 0.75
M1.1 *0.25 0.85 0.85
M1.2 *0.25 0.95 0.95
M1.4 *0.3 0.10 0.10
M1.6 *0.35 1.25 1.30
M1.7 *0.35 1.35 1.40
M1.8 *0.35 1.45 1.50
M2.0 *0.4 1.60 1.65
M2.2 *0.45 1.75 1.80
M2.3 *0.4 1.90 1.95
M2.5 *0.45 2.10 2.15
M2.6 *0.45 2.15 2.20
M3.0 *0.5 2.50 2.55
M3.5 *0.6 2.90 2.95
M4.0 *0.7 3.3 3.4
M4.5 *0.75 3.8 3.9
M5.0 *0.8 4.2 4.3
M6.0 *1.0 5.0 5.1
M7.0 *1.0 6.0 6.1
M8.0 *1.25 6.8 6.9
M9.0 *1.25 7.8 7.9
M10.0 *1.5 8.5 8.7
M11.0 *1.5 9.5 9.7
M12.0 *1.75 10.3 10.5
M14.0 *2.0 12.0 12.2
M16.0 *2.0 14.0 14.2
M18.0 *2.5 15.5 15.7
M20.0 *2.5 17.5 17.7
M22.0 *2.5 19.5 19.7
M24.0 *3.0 21.0 ！
M27.0 *3.0 24.0 ！
M30.0 *3.5 26.5 ！
M33.0 *3.5 29.5 ！
M36.0 *4.0 32.0 ！
M39.0 *4.0 35.0 ！
M42.0 *4.5 37.5 ！
M45.0 *4.5 40.5 ！
M48.0 *5.0 43.0 ！
＃.Metric fine thread
Symbol of thread Drill bit Dia.
ASP60C Carbide
M1.0*0.2 0.80 0.80
M1.1*0.2 0.90 0.90
M1.2*0.2 1.00 1.00
M1.4*0.2 1.20 1.20
M1.6*0.2 1.40 1.40
M1.8*0.2 1.60 1.60
M2.0*0.25 1.75 1.75
M2.2*0.25 1.95 2.00
M2.5*0.35 2.20 2.20
M3.0*0.35 2.70 2.70
M3.5*0.35 3.20 3.20
M4.0*0.5 3.50 3.55
M4.5*0.5 4.00 4.05
M5.0*0.5 4.5 4.55
M5.5*0.5 5.00 5.05
M6.0*0.75 5.30 5.35
M7.0*075 6.30 6.35
M8.0*1.0 7.00 7.10
M8.0*0.75 7.30 7.35
M9.0*1.0 8.00 8.10
M9.0*0.75 8.30 8.35
M10.0*1.25 880 8.90
M10.0*1.0 9.00 9.10
M10.0*0.75 9.30 9.35
M11.0*1.0 10.0 10.1
M11.0*0.75 10.3 10.3
M12.0*1.5 10.5 10.7
M12.0*1.25 10.8 10.9
M12.0*1.0 11.0 11.1
M14.0*1.5 12.5 12.7
M14.0*1.0 13.0 13.1
M15.0*1.5 13.5 13.7
M15.0*1.0 14.0 14.1
M16.0*1.5 14.5 14.7
M16.0*1.0 15.0 15.1
M17.0*1.5 15.5 15.7
M17.0*1.0 16.0 16.1
M18.0*2.0 16.0 16.3
M18.0*1.5 16.5 16.7
M18.0*1.0 17.0 17.1
M20*2.0 18.0 18.8
M20*1.5 18.5 18.7
M20*1.0 19.0 19.1
M20*1.0 20.0 ！
M22*1.5 20.58 ！
M22*1.0 21.0 ！
M24*2.0 22.0 ！
 
Symbol of thread Drill bit Dia.
ASP60C Carbide
M24*1.5 22.5 ！
M24*1.0 23.0 ！
M25*2.0 23.0 ！
M25*1.5 23.5 ！
M25*1.0 24.0 ！
M26*1.5 24.5 ！
M27*2.0 25.0 ！
M27*1.5 25.5 ！
M27*1.0 26.0 ！
M28*2.0 26.0 ！
M28*1.5 26.5 ！
M28*1.0 27.0 ！
M30*3.0 27.0 ！
M30*2.0 28.0 ！
M30*1.5 28.5 ！
M30*1.0 29.0 ！
M32*2.0 30.0 ！
M32*1.5 30.5 ！
M33*3.0 30.0 ！
M33*2.0 31.0 ！
M33*1.5 31.5 ！
M35*1.5 33.5 ！
M36*3.0 33.0 ！
M36*2.0 34.0 ！
M36*1.5 34.5 ！
M38*1.5 36.5 ！
M39*3.0 36.0 ！
M39*2.0 37.0 ！
M39*1.5 37.5 ！
M40*3.0 37.0 ！
M40*2.0 38.0 ！
M40*1.5 38.5 ！
M42*4.0 38.0 ！
M42*3.0 39.0 ！
M42*2.0 40.0 ！
M42*1.5 40.5 ！
M45*4.0 41.0 ！
M45*3.0 42.0 ！
M45*2.0 43.0 ！
M45*1.5 43.5 ！
M48*4.0 44.0 ！
M48*3.0 45.0 ！
M48*2.0 46.0 ！
M48*1.5 465 ！
M50*3.0 47.0 ！
M50*2.0 48.0 ！
M50*1.5 48.5 ！
 
Symbol of thread Drill bit Dia.
ASP60C Carbide
No.1-64UNC 1.55 ！
No.2-56UNC 1.80 ！
No.3-48UNC 2.10 ！
No.4-40UNC 2.30 ！
No.5-40UNC 2.60 ！
No.6-32UNC 2.80 ！
No.8-32UNC 3.40 ！
No.10-24UNC 3.90 ！
No.12-24UNC 4.50 ！
1/4-20UNC 5.10 ！
5/16-18UNC 6.60 ！
3/8-16UNC 8.00 ！
7/16-14UNC 9.40 ！
1/2-13UNC 10.80 ！
9/16-12UNC 1220 ！
5/8-11UNC 13.60 ！
3/4-10UNC 1650 ！
7/8-9UNC 19.50 ！
1-8UNC 22.20 ！
11/8-7UNC 25.00 ！
Symbol of thread Drill bit Dia.
ASP60C Carbide
No.0-80UNF 1.25 ！
No.1-72UNF 1.55 ！
No.2-64UNF 185 ！
No.3-56UNF 2.10 ！
No.4-48UNF 2.40 ！
No.5-44UNF 2.70 ！
No.6-40UNF 2.90 ！
No.8-36UNF 3.50 ！
No.10-32UNF 4.10 ！
No.12-28UNF 4.60 ！
1/4-28UNF 5.50 ！
5/16-24UNF 6.90 ！
3/8-24UNF 8.50 ！
7/16-20UNF 9.90 ！
1/2-20UNF 11.50 ！
9/16-18UNF 12.90 ！
5/8-18UNF 14.50 ！
3/4-16UNF 17 ！
7/8-14UNF 20.50 ！
1-12UNF 23.20 ！
Remark:When drilling holes according to this table, the size precision of drilled holes will change depending on machining conditions. Hole diameter and precision can be measured after actual machining. If the bottom hole is not appropriate, drill bit diameter shall be changed.