Socket heads (6 points)
Number of
hex sockets included in the tool kit.
All end heads are accessories for a collapsible tool; during operation, they are mounted on a ratchet, wrench or other similar device. The head itself has the appearance of a characteristic “cap”, which, during operation, is put on a bolt, nut, etc. This design, among other things, allows you to work with parts located in recesses and some other hard-to-reach places that cannot be reached with open-ended, captive or split keys. And compared to a set of classic socket wrenches, the holder plus socket set takes up much less space, providing almost the same functionality.
As for the 6 faces, this type of socket head is the most famous and widespread, because. most modern nuts and bolts have this shape.
Socket heads (Surface)
The number
of Surface sockets supplied with the tool kit.
All end heads are accessories for a collapsible tool; during operation, they are mounted on a ratchet, wrench or other similar device. The head itself has the appearance of a characteristic “cap”, which, during operation, is put on a bolt, nut, etc. This design, among other things, allows you to work with parts located in recesses and some other hard-to-reach places that cannot be reached with open-ended, captive or split keys. And compared to a set of classic socket wrenches, the holder plus socket set takes up much less space, providing almost the same functionality.
Specifically, this type of socket is also called
SuperLock, or "heads for torn edges." They are intended for hexagonal fasteners and, in accordance with the name, have increased efficiency on heavily worn parts. The working surface of the Surface / SuperLock heads has the form of a circle with six characteristic rounded protrusions, which, when working, are adjacent to the midpoints of the faces of the fastener — due to this, the force is applied not to the corners of the hexagon, but to its sides. This not only allows you to work with stripped edges, but also reduces the risk of failure on intact fasteners; thanks to this, it becomes possible to work with great effort, without fear of damage. On the other hand, this advantage is relevant only if the size of the h
...ead strictly corresponds to the size of the part — otherwise, the risk of failure, on the contrary, increases.Socket heads sizes (Surface)
The range of working sizes of Surface sockets (see above) supplied with the kit. This parameter allows you to evaluate how the heads fit the dimensions of the fasteners with which they are planned to be used.
Tap wrench
The number of knobs supplied with the tool kit.
The collars are a composite tool and are used exclusively in combination with various nozzles, and sometimes with bits. As the name implies, they are designed to rotate such nozzles; moreover, the common point for all the knobs is that the nozzle is located perpendicular to the handle — this provides a large lever arm length and high torque with a relatively small effort on the handle. The specific design of the collars may be different. One of the most popular options is T-shaped devices, which can also vary: the nozzle mount can be located in the centre of the handle or closer to one of the edges, it can be movable or fixed, removable or non-removable, etc. There are also L-shaped collars, similar to socket wrenches (see above) with interchangeable nozzles; cardan, in which the mount is located at the very end and can be rotated to a selected angle, etc. If there are several wrenches in the kit, they usually have the same design, and the main differences are in the length of the handles, as well as the types and sizes of attachments for nozzles.
Note that in some sets, the role of a wrench can be played by a rigid extension (see below), equipped with a removable mount for the nozzle, and when such a mount is installed, it turns into a wrench handle. Such a device, when calculating the total number of units (see above), is considered as one item, although it performs two
...different functions and is indicated in our catalog as both a crank and an extension.Wrench sizes
Dimensions of the wrenches supplied in the set. Specified as a range — from the minimum to the maximum size. In this case, the specific distribution of different types of keys over the range may be different. An example is the following set: 17 open-end wrenches, 5 box wrenches, size range 6 – 24 mm. In such a set, box wrenches are almost guaranteed not to cover the entire range of sizes, but for open-end wrenches, this is quite likely. Such details can be specified separately.
Also note that a wrench size of
24mm or more is considered quite large for today's general purpose tools. However, on the market you can find sets that include wrenches for
27 mm,
30 mm and even
32 mm.
Hex wrenches size
Working size range of hex wrench sizes (see above) supplied with the kit. This parameter allows you to evaluate how the keys fit the dimensions of the fasteners with which they are planned to be used.
Slotted
Screwdrivers with flat tips, originally designed for a slot in the form of a slot. Note that such tips are quite versatile, they can be used with cross slots, and even with asterisks — the only thing is that in such cases it is impossible to apply great efforts due to the high probability of tool breakage.
Cross-recess
Screwdrivers with tips designed for cross slots. Note that flat screwdrivers also work with such slots; however, it is still better to use “native” tools — they distribute the load more evenly and allow you to apply great efforts without the risk of tearing the edges of the slot.
Dimensions
The dimensions of the entire set, namely the case, lodgment, cassette, etc. storage accessory (see paragraph above) with tools installed inside. Allows you to understand how much space the model will occupy and whether it can be placed in a complete set in one place or another.
