DEWALT FlexTorq 40 Piece 1 4 in Impact Driver Bit Set Encaustic Look Tile A: Glue down installation is recommended Number of Batteries Included:9 A: Glue down installation is recommended for this product The AIRCAT 3 Reversible Cut Off Tool features precision bearings that reduce vibration and spindle run out Sub Brand FlexTorq Brand Model Compatibility Universal Bit Length Set Shank Size 1 4 in Shank Type Hex Material Shock resistant tool steel Head Type Set Adaptor Included Yes Set Individual Set Double Ended No Warranty None Case Type Hard Package Quantity 40 CA Residents: Prop 65 Warning(s) No Number of Pieces 40 Impact Ready bits with FlexTorq have increased durability Impact Ready bits with FlexTorq have extended Torsion zone for longer life CNC machined resulting in accurate manufacturing for optimal fit into screw recess Reflex core allows 2 in bits to flex up to 15 degrees to reduce breakage Part of 10X Magnetic Screw Lock System for faster retention which minimizes drops and reduces wobbling Includes 40 pieces