The RIDGID 1/4 in. AC Collated Screw Gun features a powerful motor that provides 3,700 RPM for sinking screws up to 3 in.Powerful 6.5 Amp Motor - provides 3,700 RPMs to drive up 1"-3" screws Compact Design - lightweight design offers greater ergonomics for extended use Hex Grip Overmold - offers maximum comfort for extended use Tool-Free Nose Piece - easily and quickly change between 1"-3" fastener sizes Reversible Belt Clip - for ease of use for left and right hand users Oversized Depth Adjustment Wheel - for easily countersinking screws at desired setting Single Finger Trigger with Lock-on Button - allows for single or rapid driving applications