The NTS 201 universal wet and dry grinder is a professional machine for sharpening, grinding, deburring and polishing cutting tools and metal components that require controlled processing. It is suitable for chisels, gouges, plane irons, technical knives, hand tools, blades and hard steel tools, including tool steel above 60 HRC. Wet grinding reduces overheating of the cutting edge and helps preserve the hardness of the material during sharpening.

The NTS 201 model operates with 230 V power supply and a 0.15 kW motor. The 115 rpm rotation speed is designed for slow and controlled grinding, particularly useful when restoring cutting edges without generating excessive heat. Unlike high-speed bench grinders, the low speed combined with water cooling allows more delicate processing, reducing the risk of tempering, loss of hardness, burning or edge damage.

The main grinding wheel measures 200 x 40 mm and is made of high-grade corundum, a material suitable for achieving good sharpening results even on hard steels. The width of the wheel provides stable tool support and helps maintain the correct angle during operation. The water tank allows the wheel to work in a cooled environment, keeping the temperature low and promoting more regular material removal.

The 200 x 30 mm leather honing wheel is used for finishing after sharpening. After grinding, small burrs or irregularities may remain on the cutting edge; the leather wheel, used with the supplied abrasive paste, allows the edge to be polished, burrs to be removed and surface quality to be improved. This stage is important when a cleaner, more regular and ready-to-use cutting edge is required.

The machine is supplied with abrasive paste for polishing, an angle gauge for measuring the sharpening angle, universal sharpening support, high-grade corundum wheel K and leather honing wheel. The angle gauge allows the correct tool angle to be set and checked against the wheel, improving repeatability. This is particularly useful when sharpening several tools of the same type or when a specific angle must be maintained for consistent cutting performance.

The NTS 201 includes several holding devices for different tools, making correct tool positioning easier during grinding. Stable clamping is essential to achieve a uniform edge, avoid vibrations, reduce angle errors and keep the sharpening angle constant. The machine is therefore suitable for both experienced operators and users who need precise results with easier setup.

The induction motor provides quiet, smooth and low-vibration operation. This is important in sharpening work because vibrations and irregular movement can compromise cutting edge quality. The motor and switch are splash-proof, a useful feature considering wet grinding operation and the presence of the cooling water tank.

The possibility of dry and wet operation makes the grinder versatile. Wet grinding is suitable for precise sharpening and for avoiding overheating, while dry operation can be used for quick finishing, deburring or preparation, always according to the material and tool type. The correct mode depends on the required result, steel hardness and amount of material to be removed.

In woodworking and carpentry, the NTS 201 is useful for keeping chisels, gouges, plane irons and cutting tools efficient. In workshops and maintenance departments, it can be used to restore hand tools, remove burrs, correct minor edge damage and prepare cutting surfaces. In technical laboratories, it allows controlled processing with greater attention to edge quality and preservation of material characteristics.

For good results, the water tank should be filled correctly, the angle should be set with the gauge, the tool should be clamped securely, light pressure should be applied and sharpening progress should be checked frequently. After grinding, polishing on the leather wheel with abrasive paste improves the edge and removes residual burrs. Regular cleaning of the machine, water tank and leather wheel helps maintain consistent processing quality.

The NTS 201 universal wet and dry grinder is therefore a complete solution for tool sharpening and finishing. The combination of 200 x 40 mm grinding wheel, 200 x 30 mm leather wheel, 115 rpm speed, 0.15 kW induction motor, water cooling, holding accessories, angle gauge and splash protection makes it suitable for workshops, woodworking shops, maintenance departments, laboratories and operators requiring precise, controlled grinding that preserves the material.