Conform to Dimensions in mm
IS 6708 : 2002
ISO 866 : 1975
DIN 333 : 1986

TWIST DRILLS - Centre Drill (Type-A)
Pilot Diameter(k12) Body Diameter(h9) Overall Length Max Overall Length Min Pilot Length Max Pilot Length Min
1.003.1533.5029.501.901.30
1.253.1533.5029.502.201.60
1.604.0037.5033.502.802.00
2.005.0042.0038.003.302.50
2.506.3047.0043.004.103.10
3.158.0052.0048.004.903.90
4.0010.0059.0053.006.205.00
5.0012.5066.0060.007.506.30
6.3016.0074.0068.009.208.00
8.0020.0083.0077.0011.5010.10
10.0025.00103.0097.0014.2012.80


Range Of Applications:- For producing center holes form A.