The 100 piece stanley drill bit set features an extensive range of different drill bits and sizes this is an essential add on to your stanley fatmax drill and is great for whatever diy project you are tackling this set will help you complete your task with ease 53 screwdriver pieces includes 13 wood drill bits 13 metal drill bits 5 masonry drill bits 4 hole saw cutters and mandrel counter sink bit 2 hex keys 7 sockets carry case weight 159kg