Received the 鈥16inch 鈥 RZX Rivet Nut Tool Blind riveter. today. Utilized it on my project at the time of the delivery as I was waiting to receive it. Awesome tool ! All that was to be received was received . This is quality and will last for years with proper use. I read the negative reviews for the 17鈥 and discounted them re breakage while using the tool. Seriously there are too many safety minded features in the manufacturing. This tool is made to use the correct rivet nut and not the hard carbon steel in a-hex shape. For those rivet application. it is best to use the hand tool with two large wrenches or a power drill method ,because you need the extra torque. When a re set up of the tool for a change of rivet size is need ,,the instructions have to be followed otherwise the front section will be damaged it has to be aligned and move freely and to be straight. Keep in mind anything can break if a well made tool is misused or not by following the correct procedures for the tool by just doing it without learning how to use a new tool. It has happened in the past and I paid for it by having to replace the tool. This tool will be appropriate for heavy duty only with the proper rivet nuts. I have not tried the 17鈥 tool reviewed on the amazon review site but this 16鈥 tool I purchased will not disappoint you and I totally recommend it. It is the perfect size. Five stars for the manufacturer and seller. Best