"Package List:1 * pneumatic rivet nut gun ,1 *10-24 gun head ,1 *1/4 gun head，1 * 5/16 gun head，1 *3 /8 gun head ,5 * replaceable mandrel 10-24 ,5 * replaceable mandrel 1 / 4，5 * replaceable mandrel 5/16，5 * replaceable mandrel 3/8， 1 * Hanging Ring Note： This is a high production tool and mandrel screws are consumable wear items,We are equipped with mandrel of each size for spare parts . 1.Mandrel is consumable.With the increase of product use frequency, the mandrel will wear, Please replace the mandrel regularly,Product can be used normally. 2.This pneumatic rivet nut gun can't use stainless steel nuts, nuts of other materials can be used. 3.Work air pressure：65-100PSI, Recommended air pressure 90PSI， Setting too much air pressure will cause damage to the mandrel. 4.Our mandrel size is the british system，not in metric system. 5.It can't pull the Plus-nuts ,The thread length of the mandrel exposed to the outside of the gun body is 0.8 inch, so nuts longer than 0.8inch can’t be used. Features: This air rivet nut setting gun will make those riveting projects a breeze and save your hands from tiring out. 1. The pneumatic rivet nut gun is made of industrial grade quality, labor saving, high efficiency and stable performance. 2. Precision parts and strong power 3. Self-locking design, quick change of the gun head, easy to operate. 4. A hook at the top for easy storage Widely used in all kinds of metal sheet, pipe, cabinet, chassis manufacturing, industrial fastening, decoration, automobile manufacturing. Model: ER-704A Applicable gun head: 10-24&1/4 & 5/16 & 3 /8 Air pressure: 4.5-7 KG/CM² No-load speed: 700 (R.P.M) Air consumption:0.46 m³/min Air intake: 1/4 (MPT) Net weight: 1.3kg EROSHAK is a good brand in air tool field. If any problem or you need help, Kindly come with us , we will solve it for you at once and accept replacement or refund."