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In 1991, Milwaukee released the Milwaukee Super Sawzall, a reciprocating saw with built-in counterbalance, a gear-protecting clutch, and five different patents. In the later 1990s, Milwaukee Electric Tool Corporation released a new range of miter saws and a lineup of 18-volt contractor cordless tools. [7]
Mainly two German companies have opened their 18V systems for others: In June 2018, nine companies presented a manufacturer-overlapping system for rechargeable batteries called "Cordless Alliance System" (CAS). [25] It is based on Metabo's 18 Volt battery system. In 2020, Bosch initiated the "Power For All Alliance". [26]
A reciprocating saw is a type of handheld, small, machine-powered saw, in which the cutting action is achieved through a push-and-pull ("reciprocating") or back-and-forth motion of the blade. The original trade name, Sawzall, is often used in the United States, where Milwaukee Electric Tool first produced a tool of this type in 1951. [1] [2]
A rotary reciprocating saw is a type of saw that spins a cutting implement around a rotary axis, instead of thrusting it along a linear axis. The first use of such devices was in medicine , where cutting through bone warranted the need for a saw with minimal stroke length, and a cutting action that could be implemented through depth cut rather ...
Brushless motors are capable of producing more torque and have a faster peak rotational speed compared to nitro- or gasoline-powered engines. Nitro engines peak at around 46,800 r/min and 2.2 kilowatts (3.0 hp), while a smaller brushless motor can reach 50,000 r/min and 3.7 kilowatts (5.0 hp). Larger brushless RC motors can reach upwards of 10 ...
The original powered head saw was composed of long, narrow blades that used an up-and-down motion, a reciprocating saw. Each blade was set at a fixed width meaning each log was cut identically, regardless of flaws. This design was not energy efficient and around 1860 sawmills began to adopt the more efficient circular saw. In the 1870s, the ...