The Set Includes: 1. 13piece titanium nitride drillbits(1/16",4/64",3/32",7/64",1/8",9/64",5/32",11/64",3/16",13/64",7/32",15/64",1/4") 2. 4piece carbide-tipped masonry drill bits(5/32", 3/16",1/4",3/8") 3. 4piece brad point drill bits(5/32",3/16",1/4",3/8") 4. 3piece spade drill bits(3/8",1/2",3/4") 5. 50piece screwdriver bits(1") 6. 7piece nut drivers(3/16,7/32,1/4,9/32,5/16,11/32,3/8) 7. 5piece bit holder 8. 3piece depth stops 9. 4piece hole saws(1-1/4,1-1/2,1-3/4) 10. 1piece mandrel 11. 2piece screw guide 12. 1piece countersink 13. 1piece hex key