Makita B-59003 5 Piece Nemesis II SDS+ Plus Drill Bit Set Makita TCT Nemesis II SDS+ Plus Drill Bits: With uniquely symmetrical shape, geometry ensures precision drilling. Nemesis bits last longer - they will drill up to 50% more holes than normal rotary hammer drill bits. Drilling into reinforced concrete is no longer a hit and miss application, reinforcing bar being no obstacle for the Nemesis drill. Also perfect for use in the hardest of natural stone. MAKITA B-59003 NEMESIS II CONTENTS 1x 5.5mm x 115mm SDS+ Plus Drill Bit 1x 6mm x 165mm SDS+ Plus Drill Bit 1x 7mm x 115mm SDS+ Plus Drill Bit 1x 7mm x 165mm SDS+ Plus Drill Bit 1x 8mm x 165mm SDS+ Plus Drill Bit 1x Plastic Storage Case MAKITA NEMESIS II DRILL BIT FEATURES Nemesis II drill bits provide better breaking strength and drilling speed in reinforced concrete For drilling into masonry and concrete Centering point and symmetrical 4-cutter head guarantee a more precise drilling Two types of spirals: Fine spirals: faster drilling less friction Wide spirals: robust structured support and reduced wear. Improved debris evacuation Chamfers: prevents the drill from catching when it encounters rebars