Brushes and wire cup brushes

Brushes – Cup wire brushes bring together the codes used for cleaning and surface treatment in machine shops, machinery maintenance and industrial production. The product group is arranged by shape, covering twisted knot cup brushes, bevel brushes, cup brushes with shaft, twisted knot brushes with shaft, nylon brushes on shaft, hand brushes and cleaning brushes. Filament materials range from steel, stainless steel and brass to abrasive nylon and horsehair.

FERVI codes such as STR065, STR100I, SCF150, SCRx or SGR075 are used with angle grinders or portable drills, with an M14 thread or a 6 mm shank. The content below explains how the codes are classified by function, how to choose according to compatible equipment, and points to note during use. FERVI Italia goods are imported as genuine products and distributed with clear technical specifications.

The brushes and cup wire brushes in this product group are used for cleaning, rust removal and metal surface preparation in machine shops, machinery maintenance and industrial production. The codes are arranged by shape for easier lookup. The shape groups include twisted knot cup brushes, bevel brushes, twisted knot bevel brushes, cup brushes with shaft, twisted knot brushes with shaft, nylon brushes on shaft, hand brushes and cleaning brushes. Filament materials range from steel, stainless steel and brass to abrasive nylon and horsehair.

Most of the codes belong to the FERVI brand. Some codes mount directly onto an angle grinder via the M14 thread, for example STR065 or SCF150. Other codes use a 6 mm shank for portable drills and axial grinders, for example SGR075. Common brush head diameters run from ø 50 mm to ø 150 mm, depending on the line. The functions stated for each code include removing carbon, rust, old paint layers and burrs, and preparing surfaces before painting or welding.

The recorded compatible workpiece materials include steel, stainless steel, aluminium, cast iron and wood, varying by filament line. The content below covers classification by shape, how to choose the filament material, compatible equipment and points to note during use. Buyers can compare the codes directly against the machines available in their workshop to select the correct mounting type.

Classification by brush head shape

The brush head shape determines the contact area and the ability to reach into the workpiece. The product group has four main types: twisted knot cup, bevel, shaft-mounted and hand-held. Each type corresponds to its own mounting method. Choosing the right shape shortens working time and limits unnecessary filament wear on surfaces that do not need treatment.

The twisted knot cup brush line includes STR065, STR075, STR080, STR100 and STR120. These codes mount onto an angle grinder via the M14 thread. The descriptions state the function of removing carbon, rust, paint and other contaminants adhering to steel and cast iron surfaces.

The bevel brush line includes SCF090, SCF120 and SCF150. These codes are used with angle grinders, M14 thread. The stated functions include deburring, surface preparation and paint stripping. Compatible workpiece materials include steel, aluminium and cast iron according to each code's description.

The stainless steel filament line

Codes with the suffix I use stainless steel filaments. This group extends the range of workpiece materials to stainless steel and aluminium, alongside steel and cast iron. The mounting method and dimensions remain similar to the steel filament version of the same line. Users choose the stainless version when they need to avoid iron contamination on the workpiece surface after brushing.

Stainless twisted knot cup brushes include STR065I, STR075I, STR080I, STR100I and STR120I. All use the M14 thread on angle grinders. The descriptions state the function of removing carbon, rust and paint on steel, stainless steel, aluminium and cast iron.

Stainless bevel brushes include SCF090I, SCF120I and SCF150I. Besides steel and cast iron, this group also lists wood among the workpiece materials. The functions include deburring, surface preparation and paint stripping, used on angle grinders.

Twisted knot bevel brushes for hard-to-reach angles

The twisted knot bevel type has a brush body that tapers toward the tip. This construction helps bring the filaments into internal corners, weld seams and narrow gaps that a cup head cannot easily reach. The product description states that the tapered form is shaped to reach angles. This group suits work that requires cleaning along weld lines or the edges of parts joined at right angles.

The codes in this group are SCR100I and SCR120I, using stainless steel filaments with an M14 thread for angle grinders. The twisted wire disc set SCRx comes in two sizes, 100 mm and 120 mm, with M14 thread and a maximum rotation speed of 12500 revolutions per minute, usable on portable drills, pneumatic machines, bench drills and stationary machines.

The shaft-mounted group for drills

The shaft-mounted group uses a straight shank clamped into the chuck of a portable drill or axial grinder. This type suits small parts, holes, recesses and positions where force needs to be controlled. The brush head diameter is smaller than in the angle grinder group, so the amount of material removed per pass is also lower. The shank specification and maximum speed are stated on each code.

Twisted knot brushes with shaft include SGR075 and SGR075I, diameter ø 75 mm, 6 mm shank, 0.5 mm wire, maximum speed 12000 revolutions per minute, packed in 10 pieces. The stated functions include cleaning, rust removal and weld seam treatment.

Bevel brushes with shaft include SCG090 and SCG090I, diameter ø 90 mm, 6 mm shank. The description states use for light to medium rust and varnish removal, together with deburring. The code STG050I has a cup shape, reaching the bottoms of recesses and working frontally.

Abrasive nylon filaments

Abrasive nylon produces a softer brushing action than steel wire. The description notes that nylon filaments are more flexible and more resistant to breaking than steel wire. On metals, this group removes the oxide layer and paint residues with less scratching, while avoiding rust formation. On wood, this group is used for the surface preparation step before finishing.

The two nylon codes on shaft are SNG075-080R and SNG100-080R, packed in 10 pieces. The two differ in brush head diameter. When the workpiece surface must stay smooth or avoid deep scratches, the nylon group suits better than steel filament cup brushes.

Points to note when selecting and using

Before ordering, determine the machine in use at the workshop. Angle grinders go with the M14 thread codes. Portable drills and axial grinders go with the 6 mm shank codes. Then choose the filament material according to the workpiece: steel filaments for steel and cast iron, stainless steel filaments when stainless steel and aluminium are also involved, nylon filaments when less scratching is required.

The operating speed should not exceed the level stated on the code, for example 12000 revolutions per minute for SGR075 and 12500 revolutions per minute for SCRx. A larger diameter covers a wider area per brushing pass. A smaller diameter gives better control on narrow parts.

You can filter by shape, filament material or mounting type directly on the category page to shorten the list. Contact the technical team if you need to match codes against the machines currently in your workshop.