Reversible drill for maximum performance we recommend 90 PSI air pressure. Hardened steel planetary gears for long life performance. Excellent power-to-weight ratio forward or reverse switch conveniently located for single handed operation. Contoured handle design and aluminium die cast throttle offer precise operator control. Excellent for a wide range of drilling jobs. Standard accessory 3/8 inch eyed chuck. Optional accessory 3/8 inch keyless chuck.