5 Piece Set of Premium Carbide Masonry Drills - Swift Bore®

• Tungsten Carbide Reinforced Head, Black Oxide Finish.
• Contains the following drills: 3/16" x 4", 1/4" x 4", 5/16" x 4", 3/8" x 4", 1/2" x 4"
• Plastic re-usable drill index with bits clearly visible.
• Round shank designed for rotary and percussion hammer drilling.
• Drills through block, brick, stone, concrete & marble.
• Induction-hardened body for straightness & strength.
• Precision-ground tips are carbide grade BC20.
• Engineered with wide flutes for fast dust removal.
• 3/8" reduced shank on 1/2" bit.