SUTTON - katalog | KL-TECH s.r.o. | www.klte.cz SUTTON_katalog | Page 451

Technical Information Tapping Drill Size Chart (Fluteless)
(Fluteless) Roll Taps:
ISO Coarse
Pitch
mm Tapping
Drill mm
M1.0 0.25 0.90
M1.1 0.25 1.00
M1.2 0.25 1.10
M1.4 0.3 1.25
M1.6 0.35 1.45
M1.7 0.35 1.55
M1.8 0.35 1.65
M2.0 0.4 1.80
M2.2 0.45 2.00
M2.3 0.4 2.10
M2.5 0.45 2.30
M2.6 0.45 2.40
M3.0 0.5 2.75
Metric
Fraction
M/C Screw
Gauge
UNC
T.P.I.
BSW
Tapping
Drill mm
1/8
M3.5
0.6
32
2.90
32 3.60
24 4.30
3.70
#8
32
3.80
3/16
#10
24 4.30 1/4 20 5.80 20 5.80
5/16 18 7.30 18 7.30
16 8.80 16 8.80
M5 0.8 4.60
M6 1.0 5.55
M8
1.25
7.40
3/8
M10
40
3.10
5/32
0.7
Tapping
Drill mm
3.20
#6
M4
T.P.I.
1.50
9.30
www.klte.cz
Thread Size
471