Each master, who has extensive experience in performing repair and construction work, can not do without the use of drills to create holes in the wood. In the arsenal of experienced builders, there are necessarily a variety of wood drills that can successfully cope with the challenges of any complexity.
Recommendations for the selection of
The modern market offers a wide variety of tools for working with wood. To select suitable drills for wood, it is enough to use several standard recommendations.
A quality reliable tool is distinguished by the absence of all kinds of flaws, mechanical damages, dents, chips, scratches. When examining the drills for mechanical and cosmetic defects, do not forget about evaluating the shade of the drill in wood. Color is an important performance characteristic of woodworking products. It is he who makes it possible to determine exactly how the final machining of the tool that is required to improve strength has occurred.
- Dark drills are classified as products subject to superheated steam treatment.
- Yellow color indicates treatment to reduce metal stress.
- The bright golden color indicates the processing of the drill with titanium nitride, which increases the service life.
- The shade of raw steel is a sign of the lack of any surface finishing.
Types of drill bits for wood
When performing work, experienced masters usually require separate types of drills for wood, for example for drilling bolt holes, nails, spikes, etc. To date, the following wood drills are distinguished:
Drill for wood spiral
The main drill in the set of self-respecting master should be a spiral product. The diameter of such tools varies from 3 to 52 mm. All drills of this type have a point, which excludes slipping of the rod from the surfaces when processing wood. At the same time, the presence of a conical tail contributes to the marking of the drilling site.
Choosing drills for wood spiral, do not forget about the direct dependence of the maximum possible number of revolutions on the diameter of the product. For example, for processing soft woods in the presence of a drill with a diameter of not more than 14 mm, it is recommended to adjust the limiting speed of the instrument to 1800 per minute. Processing with identical solid wood drills requires installation of not more than 900 revolutions. Adhering to this ratio, you can significantly extend the life of any spiral drill.
Wood Drill Bit The feather drills are effective when a compromise is required between the weight of the tool and the use of large diameter drills that are used to create large holes. Find such a solution allows a special form of the tip of the drill in the form of a pen.
However, the fountain drill in wood is distinguished by the presence of one obvious drawback. The feather-shaped form prevents the chips from drifting away from the drilling site. Especially noticeable this disadvantage when you need to drill wood to a greater depth. Therefore, the most effective use of feather drills becomes only when creating holes in thick boards and wood plates.
Screw Drill Bit
A wood drill screw is usually used when drilling a hole across a fiber. The end of the screw drills for work on wood is equipped with a small screw with fine thread. Specially designed for these purposes, the helical shape allows you to easily remove the chips without overheating the rod. As to the variety of such drills, their diameter can be from 10 to 50 mm, and the length - from 400 to 1100 mm.
To create smooth, through and relatively shallow holes, center drills for wood are used. They are presented in the form of a rod with a lower cutting edge. The diameter of such drills varies from 12 to 50 mm, and the length varies from 120 to 150 mm.
How to properly sharpen a drill for woodworking?
The question of how to sharpen a new or blunted drill on wood, interests the most numerous masters who wish to extend the life of the most indispensable tools.
Before starting to sharpen quality, costly drills, experts recommend training on old, obsolete products that will allow you to fill your hand. In case of failure, the old drill bit can be used as an expendable material, besides, it is not so pitiful to spoil it.
To properly sharpen small and large drills on wood, it is necessary to observe their geometric configuration. In other words, it is necessary to keep the angle at which the product was initially sharpened during production. When sharpening drills on wood, they are allowed to be manually processed using a special file, since the products of this category are made of the most soft steel in comparison with the most durable drills for concrete and metal.
The electric sharpener can also be used to sharpen the drills. However, this requires cooling the rod under a constant stream of cold water, which will protect the drill from spoilage and overheating. On the electric sharpener, the sharpening occurs at the edge of the disk. After the formation of the required drill geometry is completed, it is debugged by processing with the same tool at low speed.