LighterBro® Pro Multi-Tool constructed of 100% hardened 400 series stainless steel. LighterBro® Pro securely holds a 1/4 inch #3 Phillips screwdriver bit at the bottom of the sleeve. Locking #3 Phillips. 5/16 and 3/16 inch sockets are included. A shackle key or wing nut wrench is conveniently located on the side of the LighterBro® Pro. Two nut grabber wrenches located on the side of the LighterBro® Pro securely grip any size nut or bolt that fits in its jaw.