Specifications:Material: MetalCol: Black and RedApplicable Head: M3-M12Maximum stroke: 9mmMaximum wking effective stroke: 7mmPulling fce: 100NSize: (L) X (W) 40x6cm / 15.75 "x 2.36" (appr.)Characteristics: Nut riveting set includes seven mrels of different sizes including M3, M4, M5, M6, M8, M10, M12, 3 / 8-16, 5 / 16-18, 1 / 4-20, 10- 24. Ergonomic hles with double compound hinges to improve durability Unique spring loaded internal hexagonal sleeve automatically locks the rotation of the h installed chuck. This rivet gun comes with 11 sets of interchangeable chucks rivet nuts in various sizes, making sure to meet all your needs Ideal where there is limited access to the back of a panel, ideal f sheet metal fabrication.Note:Interchangeable Mrel: M3 x 1, M4 x 1, M5 x 1, M6 x 1, M8 x 1, M10 x 1, M12 x 1.3 / 8-16x1, 5 / 16-18x1 1 / 4-20x1, 10- 24x1Rivets nuts: M3 x 10, M4 x 10, M5 x 10, M6 x 10, M8 x 10, M10 x 10, M12 x 10, 3 / 8-16x10, 5 / 16-18x10 1 / 4-20x10 10-24x10Package Included:1 x Riveter Tool Set (excluding other decation instruction is not included. Please feel free to contact us if you have any questions. Hope a nice dayRatings Reviews:Please allow slight measuring deviation due to manual measurement.Due to different production batch, the product details may be a little different.Due to different monits lights, the picture may not reflect the actual col of the item.Please consider the actual sizes shown in the listing as the pictures are usually enlarged to show detail.