●TEKPREM 13-PIECE SECURITY TORX SCREWDRIVER BIT SET WITH T4-T40 TAMPER RESISTANT TORX BITS SET ●TEKPREM 13-PIECE SECURITY TORX BITS SET FEATURES： ➣Made of industrial quality S2 steel which is much more durable and harder than those aglow S2 steel and those CRV material bit. ➣Professional\'s choice: Premium quality,durable and accurate which is great for professionals. ➣Can be connected with socket screwdriver handle and electrical drilling machine. ➣Include T4 T5 normal torx bit and TR6 TR7 TR8 TR9 TR10 TR15 TR20 TR25 TR27 TR30 TR40 security torx bits set. ➣stored in a rubber strip which are convenient for storage and pick up. ●TEKPREM 13-PIECE TORX BITS SET PACKING LIST: 1x T4 torx bit  1x T5 torx bit  1x T6 torx security bit (with hole) 1x T7 torx security bit (with hole) 1x T8 torx security bit (with hole) 1x T9 torx security bit (with hole) 1x T10 torx security bit (with hole) 1x T15 torx security bit (with hole) 1x T20 torx security bit (with hole) ●WARRANTY AND SERVICE: TEKPREM Lifetime warranty product, if you experience an issue with this screwdriver, please get in touch with us for a replacement. \"