Easily find the right security bit for the job with the pop up selector that allows you to see both ends of the bits. Slide the bit into the locking bit holder to hold the bit and get to work!12 Double sided bits are stored in the handle. The locking bit holder securely holds bits in place to prevent losing bits when working in tight work spaces. The Ultra Driver security multi bit driver has the most common tamper proof bits that you are looking for like T8s and T9s. The What Ultra Driver was featured on the Today Show in November 2017 and was chosen as one of This Old House Top Best New Tools of 2017. It makes a great gift to any handyman, member of the trades, or Dyer. Security Tip Sizes Included: Slotted and Phillips 5.5mm+#2 Square #1+#2 Spanner #4+#6, #8+#10 Security TORX T8s+T9s, T10s+T15s, T20s+T25s, T27s+T30s Security Hex Metric 3.0+4.0, 5.0+6.0 Security Hex Inch 1/8+9/64, 5/32+3/16, 7/32+1/4”