●1 ) Professional standard and mm tee handle allen wrench set is ideal for workshop, race mechanic and home use. ●2 ) 16 pieces complete t type hex wrench set. SAE Size: 5/64 3/32 1/8 5/32 3/16 1/4 5/16 3/8 inch, Metric Size: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm. ●3 ) Ergonomical dual head designed T-handle allen wrench hex key set for greater torque. ●4 ) High-grade alloy steel for strength and durability, black finish surface, anti-rush and corrosion resistant. ●5 ) Chamfered tips for easy entering into screws and fasteners.