Disc for a grinder for wood - the pros and cons
Even a schoolboy knows what a "grinder" is nowadays - it is an angle grinder designed to work with metal blanks by using special cutting and grinding wheels. Not everyone knows that such an electric tool can be used for wood processing, but only professionals, so this article is intended to fill this gap in the information available to ordinary users. Disc for a grinder for wood - types, general characteristics and standard sizes, as well as safety measures for use and an overview of prices for popular models - this is the topic of this article by the homemaster.techinfolux.com/en/ editorial office
Depending on the type of discs used, the "grinder" in skillful hands can be used at various stages of working with wooden blanks: from sawing to grinding
The content of the article
- 1 Is the angle grinder designed for woodworking
- 2 General characteristics of discs for "grinder", depending on the type
- 3 Standard disc sizes for "grinder"
- 4 Manufacturers of discs for "grinder" wood
- 5 Safety measures when working with a "grinder" on wood
- 6 Review of prices for popular models
- 7 Video: grinder in woodwork
Is the angle grinder designed for woodworking
"Bulgarian" was not originally intended for sawing wood, especially for workpieces of considerable thickness and hardwood. This is due to the design features of this type of tool and associated with such dangers of use:
- when the saw blade is jammed, it is difficult to hold the angle grinder in your hands, which can lead to injury;
Important! Saw blade jamming when using a grinder to cut wood is the most common problem in this type of work, due to the softness and toughness of the wood.
- The uneven structure of the tree due to knots can damage the saw blade used and injure the user.
Using special circles and observing safety rules, the likelihood of injury can be reduced to zero, even when sawing sawn timber
Despite the potential danger of using angle grinders as a tool for sawing wood products, manufacturers of consumables, which include grinder discs, produce similar products.
The main and most common uses of the grinder when working with wood are: peeling, grinding and polishing, for which manufacturers produce special types of discs.
General characteristics of discs for "grinder", depending on the type
Discs designed for different types of use differ in their design and materials used in their manufacture. In this regard, for different types of similar products, the general characteristics differ, which requires their separate consideration.
Circular disc for angle grinders for wood, 125 mm
Cut-off models
There are several types of products in this category:
- circular - considered "dangerous" saw blades;
- chain - manufactured using links designed for chain saws;
- with a small number of teeth - are the safest in comparison with circular counterparts;
- tungsten carbide - the safest type of such equipment.
The chain disc can be used for both sawing and roughing
Note! Circular discs come in two versions: this is a "dangerous" and "less dangerous" option. A distinctive feature of the "less dangerous" type models is the anti-jamming protection provided by the set of teeth.
Chain modifications are less dangerous to use because their design provides for a non-fixed fit of the saw chain on the surface of the blade.
A disc with a small number of teeth cuts wood well both along and across the grain
Low tooth discs are of two types:
- with 3 teeth - used with small grinders with a diameter of up to 150 mm;
- with 4 teeth - are used on "grinders" of a large standard size with a diameter of 230 mm.
A distinctive feature of models made of tungsten carbide is the absence of teeth on the cutting surface of the product. Segments located along the circumference of the disc act as a cutting element.
Important! Tungsten carbide models are capable of sawing various metal products (nails, self-tapping screws, etc.) that can end up in the workpiece without damaging the cutting elements and their integrity.
Appearance of a tungsten carbide disc mounted on an angle grinder
Roughing discs
For peeling wooden products, manufacturers produce several types of attachments that differ in design and types of materials used in their manufacture.
Rough disc with crumb applied to its surface
By design, such nozzles can be made in the form:
- a disc with thorns or chips applied to its surface;
- glasses with twisted wire cutting elements inserted along its circumference;
- disk with wire coils mounted on its surface.
Grinder attachments with twisted wire elements in their construction
Grinding and Polishing Models
For execution grinding and polishing, there are special attachments used both for wood and for other materials (metal, plastic, glass, etc.).
A set of polishing attachments for angle grinders (125mm) Bison model "3591-125-H7"
The attachments used for this purpose are of two types:
- the basis of the structure is a metal base, fixed on the shaft of the angle grinder, and circles made of sandpaper of different grain size or polishing materials (felt, cloth, etc.), which, in turn, are attached to the base using Velcro;
- flap emery wheel.
Flap emery wheels are available in different grain sizes, which allows you to choose the right one for a specific type of processing
Standard disc sizes for "grinder"
In the production of disks for angle grinders, companies, manufacturers operating in our country, release their products in accordance with the following regulatory documents:
- GOST 21963-2002 (ISO 603-15-99, ISO 603-16-99) “Cutting wheels. Technical conditions ".
- GOST R 53410-2009 (ISO 603-12: 1999-ISO 603-14: 1999, ISO 15635: 2001, ISO 13942: 2000) “Grinding wheels for hand-held grinding machines. Technical conditions ".
According to these documents, the standard sizes of discs used on angle grinders are: 115, 125, 150, 180 and 230 mm.
Note! The seat size for all standard sizes is 22.2 mm.
The use of angle grinders for grinding wood products is quite widespread among users of different categories.
Manufacturers of discs for "grinder" wood
Discs for angle grinders of Russian and foreign companies are presented on the domestic market for hand-held electric tools. Among them, the most popular are:
- "GRAFF" (Belarus);
- "GREATFLEX" (China);
- Bosch and Klingspor (Germany);
- "Ziflex", "PRACTICE", "LUGA" and "ZUBR" (Russia);
- "Makita" and "Hitachi" (Japan);
- "FIT" (Canada).
In addition to the above brands, other manufacturing companies are also popular in different regions of our country, which is due to the location of the region and the presence of dealers of these companies in a particular territory.
Saw blade brand "Zubr" with an outer diameter of 235 mm
Safety measures when working with a "grinder" on wood
When working on wood processing using angle grinders, safety measures are the same as in cases of using metal and other materials. However, in connection with the physical properties of wood, which have already been written about above (softness and toughness), it is necessary to take them into account, and in this regard:
- You cannot fix the "Start" button, because in this case, it will not be possible to quickly turn off the instrument.
- Sawing workpieces must be carried out at a strictly specified angle, without creating distortions that can cause the saw blade to jam.
- All work must be carried out with the protective cover installed and the use of personal protective equipment (gloves).
When performing sanding work, the use of respiratory protection is also necessary.
- It is better not to use "dangerous" saw blades equipped with large teeth on "grinders" of a large standard size, because in the event of an emergency, it will be impossible to hold the tool in hand.
- The presence of a speed controller on the tool is not a prerequisite for its use to perform such work, but it is desirable, because this will reduce the chance of injury if the saw blade is jammed.
Review of prices for popular models
The cost of products depends on the place of sale, technical characteristics and manufacturer's brand. In this section of the article, several models are presented, on the basis of which it is possible to form an idea of the order of the numbers that determine the cost of one or another type of similar products.
"GRAFF Speedcutter"
The GRAFF Speedcutter is a low tooth count model
The blade is intended for sawing wood and plywood, laminate and board materials (Fiberboard, Chipboard). The model is equipped with three teeth.
| Disc type | Outside diameter, mm | Thickness, mm | Weight, kg |
|---|---|---|---|
| Cut-off | 115 | 3,8 | 0,12 |
Feedback on the "GRAFF Speedcutter" model:More details on Otzovik: https://otzovik.com/review_6165824.html
"GREATFLEX 71-125120"
This petal type model is made on a cloth backing using abrasive materials
GREATFLEX 71-125120 consists of 72 petals located at an angle of 10˚ to the working plane of the disc, which allows for increased product efficiency.
| Disc type | Outside diameter, mm | Grain | Weight, kg |
|---|---|---|---|
| Grinding (flap) | 125 | 120 | 0,08 |
Feedback on the GREATFLEX 71-125120 model:More details on Otzovik: http://otzovik.com/review_4655934.html
"Bosch 2608623013"
Bosch 2608623013 can cut wood and nails, plastic and drywall
This model has a hard metal alloy coating and is versatile in its use.
| Disc type | Outside diameter, mm | Thickness, mm | Weight, kg |
|---|---|---|---|
| Cut-off | 125 | 1 | 0,15 |
Feedback on the Bosch 2608623013 model:More details on Otzovik: https://otzovik.com/review_3959218.html
"PRACTICE 773-606"
Appearance of "PRACTICE 773-606"
| Disc type | Outside diameter, mm | Grain | Weight, kg |
|---|---|---|---|
| Rough | 125 | 24 | 0,3 |
"FITIT 39556"
The FITIT 39556 model is successfully used for grinding materials of various degrees of hardness
| Disc type | Outside diameter, mm | Grain | Weight, kg |
|---|---|---|---|
| Grinding (flap) | 125 | 120 | 0,07 |
The cost of "FIT IT 39556" ranges from 95 to 130 rubles, depending on the company selling the goods.
"Luga 3656-125-25"
Appearance of "Luga 3656-125-25"
One of the most widespread models among ordinary users. Differs in low cost and good performance.
| Disc type | Outside diameter, mm | Grain | Weight, kg |
|---|---|---|---|
| Grinding (flap) | 125 | 60 | 0,09 |
Feedback on the Luga model 3656-125-25:More details on Otzovik: https://otzovik.com/review_3749759.html
Video: grinder in woodwork
The principle of operation and the use of discs for the "grinder" on wood are presented in the following video.
And whether it is worth using angle grinders in this way is decided by each user purely individually, weighing all the pros and cons for each type of discs sold by trade enterprises.
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