For Aluminium SUMIDIA Small Hole Boring Bars DABB Type „Sumidia“ Brazed Boring Tools for Small Hole Boring DABB-CR DABB Stock Dimensions (mm)Cat. No. Applicable (Solid carbide shank) DA2200 Dmin d l1 h r Holder For small boring DABB 025 CR l 3,0 2,5 60 2,2 0,1 HBB 2516 DABB 035 CR q 4,0 3,5 60 3,2 0,1 HBB 3516 DABB 045 CR l 5,0 4,5 80 4,1 0,1 HBB 4516 DABB 060 CR q 7,0 6,0 80 5,2 0,1 HBB 616 DABB-NR For profiling and corner grooving DABB 025 NRDABB 035 NR q 3,0 2,5 60 2,2 0,1 HBB 2516l4,03,5603,20,1HBB 3516 DABB 045 NR q 5,0 4,5 80 4,1 0,1 HBB 4516 DABB 060 NR q 7,0 6,0 80 5,2 0,1 HBB 616 DABB-BR For back boring DABB 045 BR q 7,0 4,5 80 4,0 0,1 HBB 4516DABB 060 BR9,06,0805,50,1HBB 616 Recommended Cutting Conditions Spindle revolution Feed rate Depth of cut Coolant > 2000 rpm 0,03 ~ 0,1 mm/rev 0,03 ~ 0,2 mm Wet Holder Spare Parts Dimensions (mm) Screw Wrench Cat. No. Stock d1 L d2 H HBB 2516 l 2,5 HBB 3516 l 3,5 16 100 15 HBB 4516 l 4,5 HBB 616 l 6,0 BT 0404 TH 020 M45 Tools Sumiboron / SumiDia