Milwaukee Thunderbolt 21-Piece Black Oxide Drill Bit Set, 1/16 In. thru 1/2 In. Hex Shank Drill Bit Set by sequentially charging the battery

by sequentially charging the battery packs

and many chemicals

cut away design fits around existing supply lines to remove coupling nut

The 3-flat secure-grip shank won't slip in the drill chuck

The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage

Milwaukee Thunderbolt 21-Piece Black Oxide Drill Bit Set, 1/16 In. thru 1/2 In. Hex Shank Drill Bit Set by sequentially charging the batteryThe 3 flat secure grip shank won't slip in the drill chuck Specially designed parabollic flute form clears chips and debris fast Features a thicker core than a standard drill bit 21 Pcs. in set Reduced shank diameter for use in 3 8' chucks