DeWalt DW5470 5 Piece Rock Carbide SDS Plus Drill Bit Set, 2 Cutter

Dewalt DW5470 Specifications:
3/16″ x 4-1/2″ x 6-1/2″ Rock Carbide SDS Plus Hammer Bit (DW54033)
1/4″ x 2″ x 4″ Rock Carbide SDS Plus Hammer Bit (DW54161)
1/4″ x 4″ x 6″ Rock Carbide SDS Plus Hammer Bit (DW54171)
3/8″ x 4″ x 6″ Rock Carbide SDS Plus Hammer Bit (DW54273)
1/2″ x 4″ x 6″ Rock Carbide SDS Plus Hammer Bit (DW54371)

Dewalt DW5470 Features:
ROCK CARBIDE tip maximizes carbide surface contact for longer bit life
Innovative tip that reduces walking and increases accuracy
Four Flute cleans debris out for fast, efficient drilling
Guaranteed to set up to 25-percent more anchors than other standard masonry bits
Designed with three flats on the shank that prevent it from slipping back into the chuck, ensuring user safety
Hammers through the hardest aggregate with minimal wear or breakage