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Comparison Bahco PC-11-19-PS vs Bahco PC-12-14-PS

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Bahco PC-11-19-PS
Bahco PC-12-14-PS
Bahco PC-11-19-PSBahco PC-12-14-PS
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Typejapanesejapanese
Suitable foruniversalwood
Specs
Blade length270 mm305 mm
Number of teeth per inch (TPI)18.513.5
Hardened teeth
Tooth sharpeningtrihedraltrihedral
General
Handle materialplastic / rubberplastic / rubber
Weight225 g265 g
Added to E-Catalogaugust 2016august 2016

Suitable for

The material for which the saw was originally intended to work.

Each material has its own requirements for the shape and size of the teeth, the material of the blade, etc.: for example, wood allows large teeth (4 – 6 TPI, see below), but for metal they must be very small. Therefore, sawing “non-native” material with a saw is highly discouraged: at best, it will be ineffective, at worst, damage to the tool or damage to the workpiece is possible.

In addition to classic saws for wood or metal, more specific tools are also produced — for example, for drywall or foam concrete. A separate category is multi-purpose saws suitable for several types of materials (specific options should be specified separately). Note that in saws with interchangeable blades (such as bow or jigsaw blades), you can install different types of blades, adjusting them to a specific material. However, for them, the purpose is indicated by the complete canvas, and such models are considered multi-purpose only if several different types of canvases are initially supplied in the kit. In addition, “omnivores” can be saws with a non-replaceable blade having a specific design and sharpening of teeth. When choosing by this parameter, it is worth remembering that tools of the same purpose may differ in type (see above), and, accor...dingly, in the specifics of the work for which they are intended.

Blade length

The total length of the hacksaw blade.

The value of this parameter is directly related to the saw type (see above). The general rule for choosing is as follows: the blade should be twice as long as the thickness of the largest workpiece that is planned to be sawn. This will provide an optimal range of motion to avoid unnecessary fatigue, and the tool, on the other hand, will not be too bulky. However, a long blade tends to spring back, so when working with hardwoods or other difficult-to-cut materials, shorter saws can also be taken. And in models with interchangeable blades (beam and jigsaw, some mini-saws), length data will be required to search for spare blades.

In general, for simple household tasks for sawing wood, a length of 280 – 300 mm is considered optimal. For a private house with a garden, simple construction work, you should pay attention to larger models — up to half a metre. And the largest two-handed saws can have a length of 1000 mm and even more. More detailed recommendations on the optimal blade length for certain tasks can be found in special sources.

Number of teeth per inch (TPI)

Density of teeth in a complete saw blade; measured as the number of teeth per blade length inch (TPI).

The higher the TPI, the smaller each individual tooth, and vice versa. Other things being equal, large teeth allow you to cut easily and quickly, but not very accurately; small — provide an accurate and clean cut, but at the cost of increased effort and time. Accordingly, when choosing a saw for this parameter, one must proceed from the fact that in this case it is more important — speed or accuracy. In addition, the TPI determines suitability for small workpieces: the smallest allowable log thickness is considered to be a three-tooth pitch. For example, in a 9 TPI saw, three teeth will take up 1/3", or approximately 8.5 mm.

It is worth remembering that only tools of the same type and purpose can be compared by the number of teeth per inch. So, for example, in standard saws for wood, the minimum TPI value is 4, and already in passer saws — 9. The most coarse-toothed today are saws for foam concrete — they have about 1.2 – 1.8 teeth per inch; and the “record holders” in terms of density are saws for metal and jigsaws, for which the TPI value of 24 is almost the standard.