Chamfering and Countersinking Order Planning

Please utilise guide below to plan your TOP DRILL M1™ modular step drill based

on your needs and requirements. Please contact your distributor for a quote.

Option 1 TOP DRILL M1 Drilling and Chamfering

Overall Length [L]

Drill Length [L1]

Shank Diameter [D]

Drill Diameter Min[D1]
Drilling Depth[DD]
Cutting Diameter 2 Anglem
Chamfering Depth[CD]

Option 2 TOP DRILL M1 Drilling and Countersinking

Overall Length [L]

Drill Length [L1]

Shank Diameter [D]

Drill Diameter Min[D1]
Drilling Depth[DD]
Cut Diameter 23[D23]
Countersinking Depth[DD1]
Cutting Diameter 2 Anglem