This electrician's hammer from Dogyu is a useful companion for anyone who works with nuts and bolts, particularly those who work with deep tracking and raceways. It features a solid, well-balanced metal head useful for shaping, and driving various materials. And the rear of the head has a cutting tip for breaking, chipping, or making holes. In addition, the end of the handle contains a 17mm hexagonal socket, so that you can use this mallet as a socket wrench. The socket part is narrow and long, making it compatible with D-1 and D-2 size raceways. It can fit deep into these narrow grooves and remove the nuts and bolts from within. Dogyu is a Japanese toolmaker from Miki, Hyogo with nearly 120 years experience. Everything from dies, to jigs, the the parts of their own forging machines are produced in-house because they put a premium on creating the highest-quality tools with exceptional and unique designs. Features Deep 17mm socket in the handle. Comfortable and durable non-slip grip. Extremely well-balanced head. Details Total length: 290mm Head length: 105mm Head size: 23 x 22mm Weight: 420g Socket size: 17mm Made in Japan