SUMIDIA Drills

DAL/DDL/DML Type

DML Type

Applicable TapSizeCat. No.DA2200 StockøDødLl1l2
M6DML 050V58901836
M8DML 068V6,8101042448
M10DML 085V8,5121223060
M12DML 103V10,3141363672

Application Examples (DML Type)

Work ShapeWorkConditionsResults
17 +0,153 -0,083AC4C-T6 Aluminum Casting M6 Pre-tap holesVc=100m/min f=0,1mm/rev m/c=6 spindles• Regrind after 150.000 holes • Tool life for carbide drill is 500 holes. • 30 times tool life that of carbide drills
19 +0,112 -0,153AC2C-T2 Aluminum Casting M8 Pre-tap holesVc=210m/min f=0,15mm/rev• 100.000 holes/reg (2.000m) and still running. • Dilling and chamfering in the same process
23 +0,112 -0,153AC4C-T6 Aluminum Casting M10 Pre-tap holesVc=250m/min f=0,2mm/rev• 80.000 holes/reg (1,840m) and still running. • Drilling and chamfering in the same process

DML Type Possible Profiles

a) Chamfered b) Stopped drilling possible

(1) Tolerance for dimension L is more than 0,2mm. (2) θ° is less than 180°.