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Cutting Tools

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SG-ESS/SG-ES Drills

Extremely precise position and stable drilled diameter

Positioning Enlargement

Centering, Drilling, and semi-finising by SG-ESS



Comparison of Drilling

Tool life is 2-3 times of conventional coated drills
Comparison of tool life
Cutting Conditions
Drill : 7mm
Speed : 26.4m/min
Feed : 0.2mm/rev
Depth hole : 16mm Through
Material : 42CrMo4(310HB)
SCM440
Fluid : Emulsion
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