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Fdrill Parameters（2mm）

Fdrill Parameters:
Below you will find the parameters for all standard thread sizes, these parameters apply to mild steel 2mm.
Spindle speed is our recommend level however a variation of 20% plus or minus can be used, this may result in a shorter tool lifetime.
Stainless Steel reduce the RPM by 15%
Non-ferrous materials (copper, brass and aluminium) increace the RPM by 50%

1.Metric Thread Size

 

Thread Size Fdrill Form tap
FdrillØ
[mm]		 Spindle Speed
[rpm]		 Required Power
[k/W]		 Cycle Time
[sec.]		 Spindle Speed
[rpm]
M2 1.8 3200 0.5 2 1600
M3 2.7 3000 0.6 2 1350
M4 3.7 2600 0.7 2 1000
M5 4.5 2500 0.8 2 800
M6 5.4 2400 1.0 2 650
M8 7.3 2200 1.3 2 500
M10 9.2 2000 1.5 3 400
M12 10.9 1800 1.7 3 330
M16 14.8 1400 2.2 4 250
M18 16.7 1300 2.5 5 220
M20 18.7 1200 2.7 5 200

 



2.American Standard Coarse (UNC)

 

Thread Size Fdrill Form tap
FdrillØ
[mm]		 Spindle Speed
[rpm]		 Required Power
[HP]		 Cycle Time
[sec.]		 Spindle Speed
[rpm]
#4-40 2.5 3100 1.0 4 1350
#5-40 2.9 2900 1.0 4 1350
#6-32 3.1 2800 1.0 4 1000
#8-32 3.8 2600 1.0 4-5 1000
#10-24 4.3 2500 1.0 4-5 800
#12-24 4.9 2500 1.0 4-5 650
1/4-20 5.7 2400 1.5 4-5 650
5/16-18 7.2 2200 2.0 4-5 500
3/8-16 8.7 2000 2.0 5-6 400
7/16-14 10.2 1900 2.5 5-6 330
1/2-13 11.7 1700 2.5 5-6 330
9/16-12 13.2 1600 3.0 5-7 250
5/8-11 14.7 1400 3.5 5-7 250
3/4-10 17.8 1300 4.0 6-8 200

 

 

3.American Standard Fine (UNF)

 

Thread Size Fdrill Form tap
FdrillØ
[mm]		 Spindle Speed
[rpm]		 Required Power
[HP]		 Cycle Time
[sec.]		 Spindle Speed
[rpm]
#4-48 2.6 3100 1.0 4 1350
#5-44 2.9 2900 1.0 4 1350
#6-40 3.2 2800 1.0 4-5 1000
#8-36 4.4 2600 1.0 4-5 800
#10-32 5.0 2500 1.0 4-5 650
#12-28 5.9 2500 1.0 4-5 650
1/4-28 7.4 2400 1.5 4-5 500
5/16-24 9.0 2200 2.0 4-5 400
3/8-24 12.1 2000 2.0 5-6 330
1/2-20 13.6 1700 2.5 5-6 250
9-16-18 15.2 1600 3.0 5-7 230
5/8-18 18.3 1400 3.5 5-6 200
3/4-16 18.7 1200 4.0 6-8 200

 



4.Taper Pipe Taps (NPT)

 

Thread Size Fdrill Ftap
FdrillØ
[mm]		 Spindle Speed
[rpm]		 Required Power
[HP]		 Cycle Time
[sec.]		 Spindle Speed
[rpm]
1/16-27 7.0 2200 1.5 4 400
1/8-27 9. 2000 2.0 5 400
1/4-18 12.4 1700 3.0 5 360
3/8-18 15.8 1400 3.5 5 300
1/2-14 19.6 1200 4.5 6 270
3/4-14 24.9 900 5.5 7 200

 



5.British Standard Pipe (BSP/G)

 

 

Thread Size Fdrill

Form tap
FdrillØ
[mm]		 Spindle Speed
[rpm]		 Required Power
[k/W]		 Cycle Time
[sec.]		 Spindle Speed
[rpm]
BSP 1/8" 9.2 2000 1.5 3 400
BSP 1/4" 12.4 1600 2.0 3 360
BSP 3/8" 15.9 1400 2.3 4 300
BSP 1/2" 19.9 1200 3.0 5 270
BSP 3/4" 25.4 1000 3.5 6 200
BSP 1" 31.9 800 5.0 9 180