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Unique in its kind, this guide system combines the power of a grinder with the precision of a diving circular saw...

Precision grinder

Of the three tools designed to cut tile (grinder, tile, cutecarreaux), only the grinder is truly versatile. According to its power, it accepts discs capable of cutting and grinding concrete, stone or metal. These machines are commonly used to make grooves, on the ground or in a wall. Small grinders are also used to resize tile (up to 10 mm thick) and larger models are used for materials up to about 90 mm thick. Beyond that, you need a disc of 350 or 400 mm in diameter and another type of machine: the thermal cutter (See System D No. 783).

How to combine the strengths of two tools?

Small or big, a grinder asks to be worn for the duration of its use and guided "to the eye"... Two non-existent constraints with a circular saw: its sole rests flat on the material to cut, and it is sometimes provided with a guide. Under these conditions, why not equip such a saw with a diamond disc to make it a more precise machine than a grinder? Impossible. First, because a circular saw would not last long for mineral dust, fine and abrasive. Second, because even in a professional version, it does not run at more than 6,000 rpm. A diamond disc Ø 125 mm requires 10,000 rpm. Hence the idea of ​​the manufacturer Protool to design a housing similar to that of circular saws to install its grinders...>

An adjustable system at will

Articulated on its metal sole, the cutting deck is similar to that of a diving circular saw: it can be positioned anywhere on the surface to cut and then lowered with the machine it hosts. The grinder is locked in a collar that allows to direct the machine at will, about 45° to the vertical. The sole has three pairs of rubberized rollers that are used to roll the assembly on the surface to be cut or on guide rails. Available in two versions (Ø 125 or 230 mm), this type of housing is only compatible with the grinders of the manufacturer. It is sold with two machine models - the DCC-AGP 125 (€ 333) and the DCC-AGP 230 (€ 516) - or separately for those who already have one. With this cutting system, it becomes possible to make perfectly straight cut-outs on several meters, for example to leave tiles, on a wall for grooves, or on tiles that are too big for a tile or cutter. - electric blocks, especially when it comes to bias cuts.

A guiding system for precision grinders: precision

All cutting discs have a direction of use indicated by an arrow. It must correspond to the direction of rotation of the angle gear shaft, which is indicated by an arrow on the side of the housing.

A guiding system for precision grinders: machine

Remove the four screws of the bevel gear and turn it 180°. The switch is thus found upwards and accessible once the machine is mounted in the mower deck.

A guiding system for precision grinders: precision

Align the three 120° notches on the bevel gear with the lugs on the retaining collar. The machine can then be freely oriented before being locked in the collar.

A guiding system for precision grinders: system

Unlock the rear part of the housing, hinged, by pressing a small button. It then pivots towards the front of the machine to facilitate access to the disc and its retaining nut.

A guiding system for precision grinders: precision

The nut used to block the disc also has a meaning: its central flange must be outwards, otherwise the disc can not be blocked on the washer on the other side.

A guiding system for precision grinders: grinders

Lock the nut with the claw key supplied with the machine by pressing in its two holes.

A guiding system for precision grinders: machine

At the same time, it is necessary to lock the pin of the device by means of the knob provided for this purpose on the angle gear.

A guiding system for precision grinders: system

Two types of disc are provided: standard diamond and continuous rim for tiling, for two cutting qualities, one coarse, the other thinner and sharper.

A guiding system for precision grinders: precision

If there is no guide rail, clamp a fall of the same thickness to the front of the tile. The machine will be guided smoothly beyond the tile until the end of the cut.

A guiding system for precision grinders: tile

The depth of cut depends on the thickness of the tile to be cut. By adjusting the height of the screw stop, the rim of the disc must extend beyond the underside of the tile by 5 to 10 mm.

A guiding system for precision grinders: system

Since dry cuts produce a lot of dust, connect a vacuum cleaner to the crankcase nozzle. If possible, connect the machine to the vacuum cleaner to start at the same time.

A guiding system for precision grinders: machine

Before starting, especially freehand, open the side view panel to check the position of the disc. Then unlock the housing and lower the machine gradually.

A guiding system for precision grinders: tile

The back of the sole has an index (like the front). But it only serves for certain cuts, such as in the middle of a tile...

A guiding system for precision grinders: tile

The guide rails (80, 140 and 300 cm) can be abutted by means of two splints. Slid in the grooves provided for this purpose, they are locked in position by their four grub screws.

A guiding system for precision grinders: grinders

Without a rail, the only way to guide the machine is to hold the forefinger in front of its sole, aligned with the mark drawn at the start. Advance at a constant speed without forcing the disc.

A guiding system for precision grinders: machine

At the end of the cut, the machine must advance far beyond the tile... Guide it according to a mark drawn on the fall (or following the edge of it) or by opening the side flap.

A guiding system for precision grinders: precision

The guide rails are flanged with clamps inserted at the ends. If they are cantilevered, it is best to slip from underneath shims of the proper thickness.

A guiding system for precision grinders: machine

With a guide rail, cutting starts either by lowering the machine above the tile or lowering it in front of the tile, as with a circular saw.

A guiding system for precision grinders: machine

The machine can not deviate from its trajectory thanks to the rail. And when it overflows enough, there is no need for wedge to support the device at the end of cutting.

A guiding system for precision grinders: grinders

An angular guide is available as an option. It allows for precise skew cuts and saves a lot of time when cutting in series.

A guiding system for precision grinders: machine

Simply slide the rail onto the guide bar and lock it to the required angle on the graduated area.

A guiding system for precision grinders: tile

The small and large cutters are quite similar. However, the DCC-AGP 230 is not designed to replace the rear handle of the machine.


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