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2 INTRODUCTIONISCARContentsGeneral Drilling Handbook 5Types of Holes and Their Definition .....................................................................................................6Drill Terminology .......................................................................................................................................9Drill Classifications...................................................................................................................................17Hole Accuracy and Surface Roughness by Drilling........................................................................ 22Tool Holders ............................................................................................................................................ 29Technological Drilling Method ............................................................................................................ 33Coolant in Drilling .................................................................................................................................. 36ISCAR Drilling Products ........................................................................................................................ 39Exchangeable Head Drills vs Solid Drills .......................................................................................... 43General Purpose Drilling 45ISCAR Product Family for General Purpose Drilling .......................................................................47ISCAR Drill Lines Range for General Purpose Drilling................................................................... 48Exchangeable Head Drills....................................................................................................................50QUICK-3-CHAM..................................................................................................................................................................... 51SUMO-CHAM........................................................................................................................................................................56SUMO-L-DRILL...................................................................................................................................................................... 67SUMO-GUN........................................................................................................................................................................... 72SPADE-CHAM........................................................................................................................................................................77CHAM-DRILL .......................................................................................................................................................................... 81Exchangeable Head Drills Cutting Conditions and Machine Power...................................................................86Exchangeable Head Drills Troubleshooting ...............................................................................................................92Indexable Insert Drills...........................................................................................................................100DR-TWIST...............................................................................................................................................................................101MULTI-FUNCTION TOOLS...............................................................................................................................................108Indexable Insert Drills Cutting Conditions ...................................................................................................................114Exchangeable Head Drills Troubleshooting ...............................................................................................................117Combo Drills Exchangeable Heads and Indexable Insert Drills ..................................................121COMBI-CHAM......................................................................................................................................................................123Combo Drills Exchangeable Heads and Indexable Insert Drills Cutting Conditions....................................129Modular Exchangeable Drilling Heads.............................................................................................130MODU-DRILL.........................................................................................................................................................................131Solid Carbide Drills ...............................................................................................................................138SOLID-DRILL.........................................................................................................................................................................139SOLID-DRILL Cutting Conditions...................................................................................................................................146SOLID-DRILL Troubleshooting ..................................................................................................................................... 150