Drill bit speed can be increased as much as 40 -60% and feed by 10 -20% without significantly reducing the lifetime of the drill bit. This set includes nineteen (19) drill bits ranging in size from 1-Millimetre to 10-Millimetre in steps of 0., 5-Millimetre. A 135-degree split point grinding ensures perfect centring and reduced drilling pressure. · Industrial quality ground flute for high accuracy drilling and fast... Titanium nitride drill bit body has a low coefficient of friction, reducing power consumption and heat generation. HSS Titanium Drill Bits IRWIN 10502603 - HSS Titanium Drill Bit Set In Metal Case (19 Pcs Cobalt Drill Bit Set IRWIN 10502604 HSS Titaniu Drill Bit Set (Pack of 5 Box Contains 1 x This pack contains 1 drill bit(s) sized to the following specifications: 19-pack Drill bit speed can be increased as much as 40 60% and feed by 10 20% without significantly reducing the lifetime of the drill bit. IRWIN Drill Bit Set, Titanium-Nitride, 29-Piece | SBD Affinity
