The high-quality material is made of high-quality alloy steel material, which has high hardness, durability, time-saving and labor-saving. SUPERIOR PERFORMANCE The head forged alloy steel pistol is durable enough to pull rivets quickly. The product has a vertical handle and is simple and easy to use. The easy-to-install adapter's hex bolt attaches to the drill and quickly morphs into a pistol with power rivets. It's easy to install. Product Dimensions Rivet Pistol Adapter: Specification: Component Type: Rivet Pistol Adapter Material: alloy steel size: Riveting Gun Adapter: Approx. 143 x 35 mm / 6.8 x 1.4 inches The key: approx. 149 x 35 mm / 5.9 x 1.4 in Handle: Approx. 123 x 26 mm / 4.8 x 1 in Remove the cover from the bottom of the handle Application: for riveting gun adapters packing list: 1 rivet gun adapter 1 key 1 handle notes: Manual measurement, please allow 1 to 3mm error due to manual measurement. Thank you for your understanding