Irwin Industrial Tools 3057041 Fastener Drive Tool Bit Set with Soft Case, 41-Piece Screwdriver bit set includes a soft case for rigorous job site conditions Screwdriver bit case features snap-lock closure for security Durable hinge offers lasting use 1" insert bits: #1 Phillips (2), #2 Phillips (6), #3 Phillips (2), #1 square recess (2), #2 square recess (4), #3 square recess (1), 6-8 slotted (1), 8-10 slotted (2) and 10-12 slotted (1) 2" power bits: #1 Phillips (1), #2 Phillips (4), #3 Phillips (2), #1 square recess (1), #2 square recess (3), #3 square recess (1), 8-10 slotted (1) and 10-12 slotted (1) Soft case with snap lock closure and durable hinge for rigorous jobsite conditions Includes most popular insert bits, power bits and nut setters Secure inserts Made of S2 tool steel Wide variety of configurations