Page 104 - Demo

102 ISCAR GENERAL PURPOSE DRILLING Indexable Drilling InsertsDR drills carry square inserts with a variety of chipformers and grades for machining a wide range of materials. The DR-TWISTline includes 6 types of inserts depending on the purpose and tool diameter. Insert DesignationNo. of Cutting EdgesDrill Diameter ChipformerAOMT 2 %u00d812-13.5 DTHDAOGT Precise Insert 2 %u00d812-13.5 ALSOGXPrecise Insert 4 %u00d814-24 AL SOMX 4 %u00d814-24DTGFHDSOMT 4 %u00d825-80DTGFHDSOGT Precise Insert 4 %u00d835-44 %u00d874-80 ALChip control is one of the most important factors for tool performance to facilitate chip evacuation and prevent tool damage. Chipformer, grade, and cutting conditions must be adjusted to achieve an optimal chip shape. ISCAR designed 4 types of chipformers: DT, GF, HD, AL.LL1H2H1DTgeneral use for ISO %u2013 P/M/K/H/S materials for medium up to high feed rates L %u2014 open H2 %u2014 low L1 %u2014 medium H1 %u2014 shallowALfor medium up to high feed rates for ISO %u2013 N material L %u2014 open H2 %u2014 high L1 %u2014 non H1 %u2014 deepGFfor low up to medium feed rates for ISO %u2013 P material L %u2014 close H2 %u2014 high L1 %u2014 small H1 %u2014 deepHDfor low up to medium feed rates for ISO %u2013 P material L %u2014 open H2 %u2014 high L1 %u2014 non H1 %u2014 non