A portable drill press is a versatile and useful piece of equipment. This machine is used for drilling holes of a precise diameter, angle, and depth into wood, metal, and many other materials. Various attachments are also available for use with the press which can further expand its capabilities. When looking to purchase such a machine, there are a number of qualities a buyer should be aware of.
There are four main parts to a drill press; the column, base, table, and head. The base provides support and may be secured either to the floor or a work bench. The head is the functional bit which does the drilling, the table is where the object to be drilled is placed, and the hollow, steel column holds both of these parts and is attached to the base at its bottom.
Such a machine is run using a geared chuck and key system. Its motor is most often a sealed ball-bearing design that is mounted near the back of the column. The capacity or size of the press depends on the distance from the front of the column to the chuck's center, this is referred to as the "throat depth" and in most cases measures from 8 to 17 inches.
The capacity of a press is two times its throat depth. This measurement is referred to as the "swing" which indicates the maximum size of the piece of cutting material the machine can reach the center of and bore. It will have the same diameter as its capacity and twice that of its throat depth.
The most common types of drill presses are bench-top, and floor models. A bench model is smaller and more compact, normally measuring about 23 to 48 inches tall, with a swing of 8 to 12 inches, and drilling depth of 10 to 12 inches. This type are usually a bit cheaper and are meant for light to medium work. Floor models are larger, typically standing 66 to 75 inches in height, with a swing of 13 to 20 and a stronger motor which permits drilling of thicker materials.
Specialty models with particular abilities are also on the market, such as the magnetic and radial types. A radial press offers an increased swing of at least 24 inches and can drill materials at varying angles. The magnetic press is most suitable for boring structural steel as it has superior power and usually a swing of 4 to 8 inches or more.
Motor sizes also vary, ranging from 1/4 to 1 in horsepower. The greater the power, the thicker the materials which can be drilled. The depth of the holes bored is called the "quill travel", and the higher it is, the deeper the holes will be. Most units also come with adjustable speed settings.
Other useful features to look for on a portable drill press include depth blocks, which ensure the the bit stops at a specific depth. Also if it has a fences function this is handy, as it blocks the material being drilled and allows for multiple holes to be bored. Finally, a movable table that can swivel around the base is ideal as it makes working on odd shaped pieces easier.
There are four main parts to a drill press; the column, base, table, and head. The base provides support and may be secured either to the floor or a work bench. The head is the functional bit which does the drilling, the table is where the object to be drilled is placed, and the hollow, steel column holds both of these parts and is attached to the base at its bottom.
Such a machine is run using a geared chuck and key system. Its motor is most often a sealed ball-bearing design that is mounted near the back of the column. The capacity or size of the press depends on the distance from the front of the column to the chuck's center, this is referred to as the "throat depth" and in most cases measures from 8 to 17 inches.
The capacity of a press is two times its throat depth. This measurement is referred to as the "swing" which indicates the maximum size of the piece of cutting material the machine can reach the center of and bore. It will have the same diameter as its capacity and twice that of its throat depth.
The most common types of drill presses are bench-top, and floor models. A bench model is smaller and more compact, normally measuring about 23 to 48 inches tall, with a swing of 8 to 12 inches, and drilling depth of 10 to 12 inches. This type are usually a bit cheaper and are meant for light to medium work. Floor models are larger, typically standing 66 to 75 inches in height, with a swing of 13 to 20 and a stronger motor which permits drilling of thicker materials.
Specialty models with particular abilities are also on the market, such as the magnetic and radial types. A radial press offers an increased swing of at least 24 inches and can drill materials at varying angles. The magnetic press is most suitable for boring structural steel as it has superior power and usually a swing of 4 to 8 inches or more.
Motor sizes also vary, ranging from 1/4 to 1 in horsepower. The greater the power, the thicker the materials which can be drilled. The depth of the holes bored is called the "quill travel", and the higher it is, the deeper the holes will be. Most units also come with adjustable speed settings.
Other useful features to look for on a portable drill press include depth blocks, which ensure the the bit stops at a specific depth. Also if it has a fences function this is handy, as it blocks the material being drilled and allows for multiple holes to be bored. Finally, a movable table that can swivel around the base is ideal as it makes working on odd shaped pieces easier.
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