Shockproof, unbreakable Tenite II handle with tough, durable spring steel blades. Hollow-ground bit fits any slotted screw and won’t mar screw slot. Use instead of conventional screwdriver. One screwdriver drives many sizes of screws. (USA). Tapered tip. Blade Dia. 1/8″ x 8″, 3.18mm; Blade Tip Thickness: .020″, .508mm. Non-Stocking Item. May Require Additional Time To Ship.