Every Hitachi accessory is designed to the highest standards and is rigorously tested for both performance and durability. This 50-Piece Drill and Drive Bit Set is the perfect bit set to accompany your Hitachi Power Tools. Quick change chuck allows you to change bits easily. Bits treated with Hitachi's DuraCore treatment to strengthen the molecular structure of the metal through the core. DuraCore is not a coating so it will never wear off or chip away. Includes: (5) Masonry Drill Bits - 1/8-in, 5/32-in, 3/16-in, 1/4-in, 7/32-in, (5) Brad Point Drill Bits - 1/8-in, 5/32-in, 3/16-in, 7/32-in, 1/4-in, (18) Titanium Drill Bits - (2) 1/16-in, (2) 5/64-in, (2) 3/32-in, (2) 7/64-in, (2) 1/8-in, 9/64-in, 5/32-in, 11/64-in, 3/16-in, 7/32-in, and 1/4-in, (4) Spade Bits: 1-in, 3/4-in, 1/2-in, 3/8-in, (3) 1-in P Bits - P1, (2) 1-in Bit P2, 1-in Bit P3, (4) 1-in Bits Slotted - 6-8, (2) 8-10, 10-12, (3) 1-in SQ Bits - SQ1, SQ2, SQ3, (3) Philips 2-in Bits - #1, #2 , #3, (2) 2-in Bits Slotted - 8-10, 10-12, Ratchet Handle, Drill Saw, Quick Change.