SD8 thru SD50 5 Point Security Drivers, with Tamper Proof Pin Recess 3/8” Square Drive Bit Holders, knurled for fingertip control Chrome Plated Bit Holders, with better than Impact Quality and Strength Steel, The Strongest Hardest Drivers Available Heat treated to 60-62 RC Press Fit 5 Point Security Bits with Tip Recess holes Parts and case marked for easy size and part number identification Plastic storage case Limited Lifetime Warranty