32 Piece Security Bit Set For Installing Tamper Proof Screws & BoltsThis is a new assortment of 32 security bits. These are used to install tamper proof screws and bolts.you receive: 9 Torx head bits sizes: T8, T10, T15, T20, T25, T27, T30, T35, T40 6 Metric hex head bits sizes: 2, 2.5, 3, 4, 5, 6 mm 6 Standard hex head bits sizes: 5/32", 9/64", 1/8", 7/64", 3/32", 5/64" 4 Spanner bits sizes: 4, 6, 8, 10 mm 4 Tri-wing bits sizes: 1, 2, 3, 4 mm 3 Torq bits sizes: 6, 8, 10 mm. One adapter/extension piece We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.