DEWALT DWAX200 31pc Security Screwdriving Set. This set is specifically designed with security bits for tamperproof screws. The case includes an adjustable belt clip for handy access and portability. Set includes: (9) Security Star Bits: T8, T10, T15, T20, T25, T27, T30, T35, T40. (6) Security Hex Bits: 5/16-Inch, 3/32-Inch, 7/64-Inch, 1/8-Inch, 9/64-Inch, 5/32-Inch. (4) Security Hex - Metric: 2mm, 2.5mm, 3mm, 4mm. (4) Spanner Bits: 4, 6, 8, 10. (4) Tri-Wing: 1, 2, 3, 4. (3) Clutch Type G: 6, 8, 10. (1) Bit Tip Holder.