Impact tough, 48 piece, screwdriving custom case system set, set consists of: insert bits: 2 phil #1, 6 phil #2, 2 phil #2 reduced, 2 phil #3, 2 combo bit p2r2, 2 sq #1, 6 sq #2, 2 sq #3, 5 torx #15, 2 torx #20, 1 torx #25, 2" power bits: 4 phil #2, 1 phil #3, 2 sq #2, 1 sq #3, 2 torx #20, 2 torx #25, 2.5" double ended power bits: 1 phil #2, 1 sq #2, 1 torx #25 & 1 standard bit holder, impact tough bit design provides 10x life, x-tended torsion zone helps to absorb high torque of new impact drivers, tilt-in/tilt-out case mechanism allows easier access to bits, customized storage configuration provides efficiency, so the right bit is always at hand, precision engineered bit tips deliver a tighter fit & less cam-out, heat treated bit manufacturing provides stronger bit, high visibility bit sleeve makes finding the correct bit for the job easier, durable case features a secure case latch & rubber bumpers.