... All Rights ReservedDrill Bit Technology Drill Bit Technology •Lecture Contents;,–Lecture Objectives,–Drill Bit Types,– Bit Design,– Bit Selection,– Bit Evaluation,– Bit Performance, ... Reserved•Roller Cone Bits: Inserts bits,Drill Bit TypesDrill Bit Types 28© COPYRIGHT 2001, . All Rights Reserved•Roller Cone Bits; –Fluid Circulation: Bit Design Bit DesignJet Nozzle ... . All Rights Reserved•Roller Cone Bits: Milled tooth bits,Drill Bit TypesDrill Bit Types 40© COPYRIGHT 2001, . All Rights Reserved Bit Selection – Bit Selection – Comparison ChartComparison...