Black Oxide Twist Drill Bit Set (21-Piece) | 48-89-2801 Cooler 1/8-Inch to 1/2-Inch (3

1/8-Inch to 1/2-Inch (3

Integrated screwdriver / nut driver magnetic barrel holds 8 popular tips and converts to 3 nut driver sizes

59 lb (267

72 cm x 11

005％×Test Distance）

Black Oxide Twist Drill Bit Set (21-Piece) | 48-89-2801 Cooler 1/8-Inch to 1/2-Inch (3Milwaukee's 21 PC. Thunderbolt Black Oxide Set offers superior durability and long operational life with its strong oxide coating and Thunderbolt web core. These black oxide drill bits feature parabolic flutes that drive debris and chips away from the bit to reduce heat from friction. A 135 split point tip bits into the drilling surface on contact to keep the bit from walking so you get the exact hole you need with no damage to your work piece. These