Mini drill to help craftsmen and creative people
A mini drill is a household tool used for drilling and grinding small parts. Wherever it is inconvenient to use drill or a screwdriver due to the diameter of the chuck or dimensions, it is better to use a specialized tool of a small size.
Visually, this is a low-power motor with a shaft on which a spindle is mounted. Device without transmission, with speed control and power button.
What can this tool do?
Often a mini drill is called a homemade drill, grinder, or by the Dremel brand. Dremel is the first company in the construction tool market to establish a quality mini drill as a versatile household appliance.
Miniature drills are equipped with the following functional nozzles:
- drilling the smallest holes;
- milling;
- engraving, grinding and polishing with special attachments;
- cutting, sharpening, cleaning, finishing materials;
- applying patterns.
Design
A significant design difference from a standard size drill is the spindle bushing rotational speed. Popular models of hand-held mini drills keep revolutions from 10 to 30 thousand per minute. Due to the high revolutions, there is no need to fasten the workpiece to be processed, because it does not pull them out of the hands. This feature is very convenient for engraving and grinding.
A simple chuck with a collet mechanism is used to attach the necessary equipment or cutting tool.
Interestingly, the hammer mini drill is equipped with a flexible shaft, which allows you to use the attachments in the most inaccessible places without unnecessary discomfort. It is very convenient to use a flexible shaft when you do not need to hold the drill in your hand. For this, the appliance is suspended on a special stand. This approach will free your hands, reduce vibration and reduce overall noise levels.
What is better to buy from budget models
A budget and quality tool at an affordable price - this is the hammer md050b mini drill.
Characteristics:
- power 8 watts;
- collet diameter 1 - 3 mm;
- revolutions up to 15 thousand per minute;
Due to its light weight (only 400 grams), the mini drill is very convenient to use. The drill comes with many attachments and accessories.
In the same price category, there is another remarkable model for household and industrial use - the Engraver or the mini drill "Whirlwind G 150".
Characteristics:
- power 150 watts;
- maximum turnover of 30 thousand;
- weight 1.16 kg;
More powerful model with similar collet chuck up to 3.2 mm. Very wide application - repair work, polishing, cutting, engraving, etc. There is a speed regulation. It is very convenient when working with materials of different density.
DIY mini drill
There are several popular ways to create a mini drill from improvised engines and parts. For example, a drill from an old tape engine is a handy and simple mini device. We will analyze in more detail how to make such a mini drill with our own hands.
An element is required for work - a motor from a tape recorder of past years. It works from 6 volts, so you will need another battery for the design.
You need to order a collet chuck on any resource or grind it on a lathe (which is more laborious).Also, the future drill needs to be assembled into something, so it would be great to prepare a simple case. Here's what to do next:
- Two wires are soldered to the motor.
- Insert the drill of the required diameter into the collet chuck.
- Fix the chuck on the motor shaft. The shaft is available in two diameters, 1.5 and 2.3 mm.
The simplest model is ready. It remains to turn on the power, and the drill will rotate at a good speed.
A small-diameter drill (no more than 1-2 mm) is easy to break. Therefore, try to maintain a 90 degree angle when drilling.
How to assemble the whole structure in an original and compact way?
An antiperspirant container will work. A motor with two wires and a collet, prepared earlier, will perfectly fit into the container shown in the photo.
Further, the homemade body is easy to complete with a button to turn on. For revision, a hole is drilled for the collet, or rather, for the exit of the head itself from the container lid.
The bottom of the container is also drilled for the cord or wires. On the side of the homemade case, a square is cut out with a knife for the switch.
Having prepared all parts of the structure, they assemble the modified homemade mini drill already in the case.
There are some advantages from such a homemade product:
- minimum costs for parts of the structure;
- small body;
- convenient use and management;
- individual and stylish appearance.
A very practical and easy to manufacture model.