The PneuTools MS1565 is an Industrial Grade Senco Style, Q Crown Stapler for Roof Decking, Sheathing, and Industrial Furniture applications. • The PneuTools MS1565 uses 1 1/4 - 2 1/2 15 Gauge, Q Type 7/16 Crown Staples. • This stapler?s industrial strength, light-weight die cast housing, and ergonomically designed rubber handle, means comfort and consistent ease of use on every job. • It comes with a Quick Clear Door for removing staple jams simply and efficiently, so you can get back on the job in no time. • A convenient 360 Rotational Exhaust directs air to wherever the user desires. • . It also features an Easy Change Sequential Fire / Bump Fire Trigger, an Adjustable Depth Work Contact Element, a Quick Clear Door for removing jams, and a High Capacity, Easy Load Magazine.