Nozzles for a drywall screwdriver: with and without limiter

The widespread use of drywall in repair work has led to the fact that many "dirty" and labor-intensive processes are a thing of the past. Most of the rough finish, as well as many design designs, became available for DIY. Assembling a relief installation, sheathing walls and ceilings with a conventional screwdriver, controlling the fixation of each self-tapping screw, is very troublesome. To simplify and speed up this process, as well as to avoid damage to the material, the use of a special nozzle for a drywall screwdriver will help.

Which bits are suitable for drywall: choosing a slot and size

Nozzles for a screwdriver differ in shape and size, the most popular of them are marked PH and PZ and differ in the geometry of the slots.

1. The edges of the PZ bit are strictly parallel, which ensures rigid centering and fixation of the screw head.
2. PH nozzles are distinguished by a slight divergence of slots. This allows the tool to self-center even when at an angle. When excessive force is applied, the edges of such a nozzle pop out of the screw head without damaging it.

The size of the bit for a screwdriver is determined by the diameter of the cap used fastener. When working with drywall, standard black self-tapping screws with a diameter of 3.5 mm with a cross slot are usually used, which corresponds to the No. 2 nozzle.

Conclusion: for the installation of GCR, a bit on a screwdriver marked PH2 is suitable.

Nozzles with limiter

When attaching a drywall sheet to a profile, two polar problems often arise:

• an uncompressed self-tapping screw will protrude above the surface;
• pinched - can damage the plate or pass through it, which means it will not fix it on the frame.

To avoid such situations, it is worth using bits on a screwdriver with a limiter for mounting drywall. Such a device will ensure that the fasteners are immersed to the required depth.

The limiter is a steel cartridge, at a certain moment resting against the panel and preventing further movement of the self-tapping screw. The use of such a device ensures accuracy and high quality of work. In addition, installation time is reduced by up to 50%, as there is no need to control the depth of each screw.

Note! Limiting bits - highly specialized devices designed for strictly defined materials, an unsuitable device will damage the rather fragile GKL plates.

Tape attachment

Sometimes, when talking about a nozzle on screwdriver, intended for GKL, do not mean a bit, but a special device for automatic feeding of self-tapping screws, which is put on an electric tool. After that, he can successfully replace the tape screwdriver, which allows you to speed up the installation of the gypsum board by at least 2-3 times. When working with this device, self-tapping screws on the tape are used, so the master is relieved of the need to take a new screw every time, put it on the bit, correct and hold it.

What happens if you choose the wrong bit?

The choice of this, at first glance simple, device should be approached carefully and carefully. An improperly selected device can cause a lot of trouble for the master. In addition to the wrong restrictor material, it is possible to make a mistake with the shape of the slots of the nozzle, which will cause the following problems:

• disruption of the slots of the self-tapping screw, the replacement of which takes time;
• damage or unreasonably rapid wear of the bit itself;
• lack of centering and fixation of the self-tapping screw on the nozzle;
• screwdriver damage.

Rules for choosing a good nozzle

Comfort, speed and the final result of the installation of drywall structures directly depend on the quality of the restrictive bit. Choosing the right device is not difficult, it is enough to be guided by some rules:

• The bit on the screwdriver is selected for the fasteners used, but not vice versa.
• For standard self-tapping screws with a head diameter of 3.5 mm and a cross slot, the PH2 nozzle is suitable.
• If the slot of the screw is eight-pointed, it is necessary to use a PZ bit of nominal size.
• "Advanced" devices are equipped with a magnetic holder, which helps to optimize the process and increase assembly comfort.

Advice! You can check the quality of the magnet by placing the nozzle in a "handful" of self-tapping screws. If the bit to be removed takes three or more fasteners with it, everything is in order, it will be convenient to work with such a device.

• High-quality bits may have a grooved surface, which also provides increased grip on the self-tapping screw.
• Depending on the geometry of the structure being erected, the length of the nozzle is selected. In the case of plasterboard wall or ceiling sheathing, a standard bit with a limiter is sufficient. If a niche, arch, shelves are mounted, it is better to choose an elongated nozzle.

• The service life of the device is determined by the material of manufacture. Bits containing such alloys are considered durable: chromium-vanadium, chromium-molybdenum, tungsten-molybdenum.
• The quality of components is also determined by the manufacturer. No matter how tempting the difference in cost looks and no matter how great the temptation to save money, it is better to choose a trusted manufacturer.

If working with drywall is not limited to the construction of a partition, but involves large volumes, it makes sense to use nozzles with additional coverage.

• Titanium - adds resistance to mechanical damage.
• Nickel - provides protection against corrosion.
• Carbide and tungsten - increase strength.

Instead of a special nozzle, you can purchase a special bit holder adapter with a limiter.

The use of high-quality tools, accessories and consumables is the key to the expected result. The use of a suitable bit with a limiter for a drywall screwdriver provides a high level and speed of work, allowing you not to waste time and resources replacing damaged sheets and fasteners. Uniform reliable fastening gives the necessary strength and rigidity to the structure, and special components help you do it yourself without much preparation.