The Rockwood 3” Cut-Off Tool is a heavy-duty professional quality tool ruggedly designed for many years of reliable service. It features a heavy-gauge wheel guard for maximum safety and a ball bearing motor for smooth operation and long life. Speed is easily controlled with an infinitely progressive throttled trigger control. Contents: 3” Cut-Off Tool Flat Wrench Hex Key Wrench, 5mm 3” x 3/8” x 1/16”, 26,000 RPM Cut-Off Wheel 1/4” MNPT, Male quick-disconnect Inlet Fitting Features: Arbor Size:  3/8” Replacement Cut-Off Wheel Size:  3/8” x 3” with a min. 20,000 RPM rating Maximum Cutting Depth:  11/16” RPM:  20,000 free speed Air Consumption:  6 cfm @ 90 PSI Inlet Thread Size:  1/4” FNPT Weight:  1.6 lbs Variable Speed, 4 Vane, Ball Bearing Air Motor