Made from S2 modified shock resistant steel for professional performance and durabilityProprietary precision CNC machined tips for excellent fit in fastener recessComprehensive set of common and hard to find bits for industrial and professional construction applicationsIncludes: 1/4" x 1" socket adapter, 1/4" x 2" socket adapter, Y-adapter, 1/4" square drive bit socket holder, Magnetic bit holderIncludes Phillips bits: #0, #1,#1 ACR, #2, #2 ACR, #2R, #2R ACR, #3, #3 ACR, #4Includes Pozidriv® bits: #0, #1, #1 ACR, #2, #2 ACR, #3, #3 ACR, #4Includes square bits: #0, #1, #2, #3, #4, #5Includes Torx® bits: 6, 7, 8, 9, 10, 15, 20, 25, 27, 30, 40, 45, 50Includes clutch head bits: 5/32", 3/16", 1/4"Includes hex bits: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16"Includes slotted bits: 3-4, 4-5, 5-6, 6-8, 8-10, 10-12, 12-14Includes triple square bits: #4, #5, #6, #8Includes Torq-Set® bits: #8, #10, 1/4", 5/16", 3/8"Includes spanner bits: #4, #6, #8, #10, #12Includes Torx® Tamper bits: 6, 7, 8, 9, 10, 15, 20, 25, 27, 30, 40Includes hex tamper proof bits: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16"Includes Tri-Wing® bits: #1, #2, #3, #4, #5