Comes with following nosepieces - -3/16 in., -5/32 in., -1/8 in., -3/32 in., -1/4 in., -7/32 in. Powerful durable, high speed production tool. Quick release air valve permits cylinder to return quickly for high speed assembly operations, prevents overloading for long life. Performs well at any angle. Gets into hard-to-reach areas. Provides quick, quiet and comfortable operation preventing user fatigue Features. For use with all dual-action sanders. Perfect for ATD-2080, ATD-2180 and ATD-2088 sanders. Lightweight, durable and well-balanced for use with hook and loop quick change sanding discs Specifications:. Rivet Capacity - -1/4 in. Overall Length - 10-7/8 in. ( 280mm). Weight - 0.500 lbs. Stroke - 15mm. Motor - -1/2 HP. Air Inlet Thread NPT - -1/4 in. Air Hose I.D. Size - -3/8 in. ( 10mm). Avg. Air Consumpt. - 2.320 Liter/Stroke. Air Pressure - 90-120 psi. Comes with Free AST-1426 -1/4 in. Heavy-Duty Hand Riveter. Size - 6 in.