Page 160 - Demo

158 ISCAR PRE-THREAD DRILLING WITH CHAMFERING LL1H2H1DT Chipformergeneral usefor ISO %u2013 P/M/K/H/S materialsfor medium up to high feed ratesL %u2013 openH2 %u2013 lowL1 %u2013 mediumH1 %u2013 shallowHD Chipformergeneral usefor low up to medium feed ratesfor ISO %u2013 P materialL %u2013 closeh2 %u2013 highL1 %u2013 smallh1 %u2013 deepAssembled combined drills belonging to the Pre-Thread line provides geometric versatility by capability of using a range of interchangeable drilling heads on each drill body. Drilling head replacement performs quickly and easily thanks to self-clamping mechanism, also no set-up is required after drilling head replacement. The pocket of the drill body can carry various interchangeable drilling heads for pre-threading operation according to the requirements of different thread standards.