Specifications

Conform to Dimensions in mm
IS 6709 : 2002
ISO 2540 : 1972
DIN 333 : 1986

TWIST DRILLS - Centre Drill(Type-B)
Pilot Diameter(k12) Body Diameter(h9) Overall Length Max Overall Length Min Pilot Length Max Pilot Length Min
1.606.3047.0043.002.802.00
2.008.0052.0048.003.302.50
2.5010.0059.0053.004.103.10
3.1511.2063.0057.004.903.90
4.0014.0070.0064.006.205.00
(5.00)18.0078.0072.007.506.30
6.3020.0083.0077.009.208.00
(8.00)25.00103.0097.0011.5010.10
10.0031.50128.00122.0014.2012.80


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