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A slide hammer is a tool that attaches to an object needing to be pulled and transmits an impact force to the object without striking the object itself. Slide hammers typically consist of a long metal shaft with an attachment point at one end, a heavy weight that can slide along the shaft , and a stop for the weight to impact on the end ...
For pianos, pins are typically square with a slight taper. There are three standard sizes known as No. 1, No. 2 and No. 3, for pins up to 6.5mm, for pins 6.5mm to 7.25mm, and for pins larger than 7.25mm. No. 2 is the most common. Wrenches are supplied with an eight-point star. [1] Some early keyboard instruments have oblong-shaped tuning pins.
The Adell and Starrett mechanism uses a sliding block crosswise through the hammer rather than an intermediate pin. The hammer has a hole through its center that the top of the punch sits in, and holds the top of the punch centered. The sliding block has a hole through it that, when reset, is misaligned with the hole through the hammer.
A 1/2" drive pistol-grip air impact wrench. An impact wrench (also known as an impactor, impact gun, air wrench, air gun, rattle gun, torque gun, windy gun) is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it suddenly to the output shaft.
German company Bosch produced the first "Bosch-Hammer" around 1932 in mass production. The US company Milwaukee Electric Tool Corporation states that in 1935, it was selling a lightweight 1 ⁄ 4 in (6.4 mm) electric hammer drill (cam-action). [15] Hand-cranked percussion drills were made in the UK in the mid-twentieth century. [16]
General Electric Co. 1,450 hp (1,080 kW) C-C: December 1956 32709 Originally, GE pattern GEX3341 [71] with Alco 6-251B prime mover. Purchased new. Converted to CLEAR 140 by Sygnet Rail Technologies with Cummins QSK45L prime mover in 2011-2012. Offered for sale in 2022. 93 General Electric Co. 1,450 hp (1,080 kW) C-C: December 1956 32710