Several commonly used drill bits on woodworking drilling machines

Release time:

2020-11-09

Drill bits for woodworking drilling machines The commonly used bits for woodworking drilling machines are S-type bits, square type bits and Fried Dough Twists bits. S-type drill bit, used to drill circular and elongated holes. The two ends of the elongated hole are semi-circular.

Drill bits for woodworking drilling machines

The commonly used bits for woodworking drilling machines are S-type bits, square type bits and Fried Dough Twists bits. S-type drill bit, used to drill circular and elongated holes. The two ends of the elongated hole are semi-circular.

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A square drill bit is composed of a drill sleeve and a drill core.


The square shaped four corner sharp edged drill sleeve is equipped with a spiral drill core (spiral drill bit) for drilling square holes. Square drill bit is a comprehensive drilling tool, the function of the drill core is to drill holes, and the function of the drill sleeve is to cut the edges of the hole into square corners.

When assembling the square drill, first install the fixture on the head plate, the drill set on the fixture, and the drill core in the drill card.

Fried Dough Twists drill

Fried Dough Twists drills can also be divided into ordinary Fried Dough Twists drills and cobalt Fried Dough Twists drills. Of course, cobalt Fried Dough Twists drills are not used by the right people, because they are expensive.

The Fried Dough Twists drill bit is used to drill round holes. The included angle between the two cutting edges at the end of the drill bit is the sharp sharp angle of the drill bit. When the sharp angle is small, the drill bit is sharp. Generally, the sharp angle of the drill bit is 90 °. When drilling hard wood, the sharp angle should be small, and when drilling soft wood, the sharp angle should be large.

Woodworking drill bit, as the name suggests, is specifically designed for drilling machines. Drilling can be divided into left and right. Some friends also say positive and negative. Usually, there are more right conversions. That is to say, it rotates forward or in a clockwise direction. The most commonly used specifications for drilling are 8mm, 10mm, and 15mm.

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