Operation

Hold the tool firmly. Set the base plate on the workpiece to be cut without the wheel making any contact. Then turn the tool on and wait until the wheel attains full speed. Feed water to the wheel by adjusting the water cock to obtain a gentle flow of water. Move the tool forward over the workpiece surface, keeping it flat and advancing smoothly until the cutting is completed. Keep your cutting line straight and your speed of advance uniform.

For fine, clean cuts, cut slowly. (When cutting glass plate 5 mm (3/16”) thick, cut at about

250mm/min (9-7/8”/min). When cutting tile 10 mm (3/8”) thick, cut at about 300 mm/min (11-13/16”/min). Also slow down as you complete a cut to avoid breaking or cracking the workpiece being cut.

CAUTION:

*Be sure to hold the workpiece firmly down on a stable bench or table during operation. *Do not twist or force the tool in the cut, or the motor may be overloaded or the work-

piece may break.

*Do not use the tool with the wheel in an upward or sideways position.

*When cutting glass plate, it is recommended to attach a rubber plate (optional accessory) on the base of the tool to prevent the workpiece surface from being scratched.

*The wheel for Model 4191D/DW is a wet-type wheel for glass and tile applications. Be sure to feed water to the wheel during operation.

*If the cutting action of the wheel begins to diminish, dress the cutting edge of the wheel using an old discarded coarse grit bench grinder wheel or concrete block.Dress by press- ing lightly on the outer edge of the wheel.

CAUTION:

If the tool is operated continuously until the battery cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery.

4191DZ specifications

The Makita 4191DZ and 4191DWA are innovative power tools designed to enhance efficiency and performance in various applications. These models are particularly well-suited for professionals and DIY enthusiasts looking for reliable solutions for cutting and drilling tasks.

One of the standout features of the Makita 4191DZ and 4191DWA is their portability. Both models are lightweight and compact, making them ideal for overhead and tight space work. The cordless design offers exceptional freedom of movement without being tethered to a power outlet, allowing users to operate effectively in a range of environments.

These tools are powered by a high-performance 18V lithium-ion battery, which is known for its long-lasting power and quick charging capabilities. This technology not only reduces downtime between tasks but also extends the overall lifespan of the battery. Users can enjoy a consistent power output throughout their work, whether drilling into wood, metal, or masonry.

The Makita 4191DZ and 4191DWA feature a variable speed control mechanism, enabling users to adjust the speed according to the requirements of the task at hand. This versatility is critical when working with different materials, as it allows for optimal drilling efficiency and precision. Coupled with a high-speed steel drill bit, these models can achieve quick and clean holes in various substrates.

Moreover, both models incorporate advanced safety features. The built-in electronic brake stops the rotation of the bit almost immediately when the trigger is released, enhancing user safety significantly. Additionally, the ergonomic grip design ensures maximum comfort during extended use, reducing fatigue and improving overall handling.

The construction of these tools also reflects a commitment to durability. The robust outer casing is engineered to withstand the rigors of professional use while protecting internal components from dust and debris. This is especially beneficial for those who work in tough job site conditions.

In summary, the Makita 4191DZ and 4191DWA are exceptional cordless power tools that combine portability, performance, and safety. With features such as a powerful lithium-ion battery, variable speed control, and durable construction, they are perfect choices for anyone seeking reliability and efficiency in their drilling and cutting tasks.