Center Drill

Center Drill

Center Drill
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The primary use for a centre drill is to provide a 60° hole for a tailstock centre as a support during turning. The little drill bit on the end gives clearance, and provides an oil reservoir, for the point of the centre.

HP Drill 5D

Item Code Cutting Dia. Shank Dia. Flute length Over all length
  D d L2 L1
S5DHP030 3.0 MM 6 28 66
S5DHP031 to 037 3.1 to 3.7 6 28 66
S5DHP038 to 047 3.8 to 4.7 6 36 74
S5DHP048 to 060 4.8 to 6.0 6 44 82
S5DHP061 to 070 6.1 to 7.0 8 53 91
S5DHP071 to 080 7.1 to 8.0 8 53 91
S5DHP081 to 100 8.1 to 10.0 10 61 103
S5DHP101 to 120 10.1 to 12.0 12 71 118
S5DHP121 to 140 12.1 to 14.0 14 77 124
S5DHP141 to 160 14.1 to 16.0 16 83 133
S5DHP161 to 180 16.1 to 18.0 18 93 143
S5DHP181 to 200 18.1 to 20.0 20 101 153