
SUMIDIA Drills DAL/DDL/DML Type DML Type Applicable Stock Cat. No. øD ød L l1 l2 Tap Size DA2200 M6 DML 050V 5 8 90 18 36 M8 DML 068V 6,8 10 104 24 48 M10 DML 085V 8,5 12 122 30 60 M12 DML 103V 10,3 14 136 36 72 Application Examples (DML Type) Work Shape Work Conditions Results AC4C-T6 • Regrind after 150.000 holes -0,083 +0,153 Aluminum Vc=100m/min • Tool life for carbide Casting f=0,1mm/rev drill is 500 holes. m/c=6 spindles • 30 times tool life 17 M6 Pre-tap that of carbide drills holes AC2C-T2 • 100.000 holes/reg -0,153 +0,112 (2.000m) and still Aluminum Vc=210m/min running. Casting f=0,15mm/rev • Dilling and chamfering in the 19 M8 Pre-tap same process holes AC4C-T6 • 80.000 holes/reg -0,153 +0,112 (1,840m) and still Aluminum Vc=250m/min running. Casting f=0,2mm/rev • Drilling and chamfering in the 23 M10 Pre-tap same process holes DML Type Possible Profiles Sumiboron / SumiDia Tools a) Chamfered b) Stopped drilling possible (1) Tolerance for dimension L is more than 0,2mm. (2) θ° is less than 180°. M55