Great for working on technical equipment, bicycles, motorcycles, skis, musical instruments and ready to assemble furniture. This Hex screwdriver is a great addition to any toolbox, be it in heavy duty industrial use to an avid do-it-yourselfer. The HEX (Allen) driver features the 8 most popular standard hex screwdriver tips and the 6 most popular metric hex screwdriver tips. The shaft opening serves as a 1/4a ^2 hex driver! Specifications: Weight: .5 lbs Driver Features: Hex, Palm Saver Cap, Retractable Bit Cartridge, EZ Guide Collar Screwdriver Bits: Standard Hex, 1/4a ^2 Hex Shaft, Metric Hex Made in: USA Warranty: Lifetime Warranty