Conform to Dimensions in mm
IS 6710 : 2002
ISO 2541 :1972
DIN 333 : 1986

TWIST DRILLS - Centre Drill(Type-R)
Pilot Diameter(k12) Body Diameter(h9) Overall Length Max Overall Length Min Cutting Edge Length Radius Max Radius Min
1.003.1533.5029.503.003.152.50
(1.25)3.1533.5029.503.354.003.15
1.604.0037.5033.504.255.004.00
2.005.0042.0038.005.306.305.00
2.506.3047436.78.06.30
3.158.0052.0048.008.5010.008.00
4.0010.0059.0053.0010.6012.5010.00
(5.00)12.5066.0060.0013.2016.0012.50
6.3016.0074.0068.0017.0020.0016.00
(8.00)20.0083.0077.0021.2025.0020.00
10.0025.00103.0097.0026.5031.5025.00


Figures Mentioned in red are for reference only
Range Of Applications:- For producing radious type center hole form R.