How to distinguish the types of drill bits
The drill bit is one of the most important accessories on the drill tools. It is a tool that can drill through holes or blind holes from solid materials and ream existing holes. Commonly used drills mainly include twist drills, flat drills, center drills, deep hole drills and nest drills. Although reamers and countersink drills cannot drill holes on solid materials, they are customarily classified as drill bits. Let's take you to learn more about the classification of drill bits
Classified by structure
1.Integral drill: the drill top, drill body, and drill shank are integrally manufactured from the same material.
2. End-welded drill: the top of the drill is welded by carbide.
Classified by drill
1.Straight shank drills: drills with a diameter below ψ13.0mm, all use straight shanks.
2. Taper shank drill bit: The bit shank is tapered, and the taper is generally Morse taper.
Classified by purpose
1.Center drill bit: generally used for centering before drilling, the front end cone has 60°, 75°, 90°, etc., in order to support the tailstock during lathe operation, the 60° center drill and lathe tailstock should be used for support The top center is matched with 60°.
2.Twist drill bit: It is the most widely used drill bit in industrial manufacturing. We generally use twist drill bit.
3.Super hard drill: The front end of the drill body or all of it is made of super hard alloy tool materials, which are used for drilling of processing materials.
4.Oil hole drill: The drill body has two small holes through which the cutting agent reaches the cutting edge part to take away heat and chips. Use this drill to rotate the work while the drill is stationary.
5.Deep hole drill: It was first used for the drilling of barrels and stone-clad tubes, also known as barrel drills. The deep hole drill is a straight groove type, which cuts a quarter of the strong part in a round tube to produce cutting edge chip removal.
6.Drill reamer: For mass production, the front end is a drill bit, and the back end is a reamer. The diameter of the drill bit and the diameter of the reamer are only the margin of the reaming hole. There are also drill bits that are used in combination with screw tapping, so it is also called It is a mixed drill bit.
7.Taper drill: When processing the mold inlet, taper drills can be used.
8.Cylindrical hole drill: We call it a countersunk milling cutter. The front end of this drill has a smaller diameter part called a track rod.
9.Tapered hole drill: For drilling tapered holes, the front end angles are 90°, 60°, etc. The chamfering tool we use is a kind of tapered hole drill.
Due to the different types of drill bits, the working scenes are also different. If you want to learn more about drill tools after reading the above content, you can contact us for a more comprehensive solution.
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