The Gisam 1200N.M impact wrench has a maximum tightening torque of 1,200 N·m and uses a brushless motor. It is compatible with Makita 18 V B-series lithium-ion batteries, making it an option for workshops that already use them.
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Performance and uses
The wrench is designed to tighten and loosen bolts and nuts during assembly, maintenance and mechanical work. The stated 1,200 N·m is the maximum tightening torque; no maximum loosening or breakaway torque is specified. High torque is useful for demanding fasteners, but it does not mean every fastener should be tightened to the maximum.
The brushless motor does not require carbon brush replacement and may run more efficiently and with less heat than a conventional brushed motor. This can be useful for frequent use. The motor design alone, however, does not guarantee a particular service life or level of reliability.
Makita battery compatibility
The Gisam 1200N.M supports Makita 18 V B-series lithium-ion batteries, including the BL1830B, BL1840B and BL1850B. If you already use these batteries with other tools, you can also use them with this wrench. The recommended capacity range is 2.0 to 5.0 Ah. A higher-capacity battery may provide longer runtime per charge, but its weight is also worth considering.
The wrench is not compatible with G-series batteries such as the BL1813G and BL1413G, or with the 1822 Ni-Cd battery. Check the model number of your batteries before use.
Sockets, lighting and safe use
The tool has a standard 1/2-inch square drive for sockets. Choose sockets designed for impact wrenches and use the correct size for the nut or bolt. An LED light near the drive helps illuminate the work area, including dark or hard-to-reach spaces.
For fasteners with a specified tightening torque, use a torque wrench for final tightening and verification, following the fastener manufacturer's specification. This helps prevent under-tightening or over-tightening.
Who is it for?
The combination of high stated torque, a brushless motor and a 1/2-inch square drive makes the Gisam 1200N.M suitable for more demanding workshop and assembly jobs. It may appeal to mechanics and assembly workers, as well as DIY users who already own compatible Makita B-series batteries.
The blue finish helps distinguish the tool visually. Alongside battery compatibility, consider information not provided here when choosing a tool: its weight, available controls and package contents.
