TCT annular cutter with parallel DNTJ-5 System 1

TCT annular cutter with parallel DNTJ-5

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 5000 pc/month

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DNTJ-5

D.O.C. 75mm
Unit：mm
◎ 31.75 Parallel shank for clamping strength and finish . Suitable foe large cutter above Φ61mm
◎ Selected special-purpose carbide tips with multi-cut geometry for ply-cutting and lower friction . Reduced damage of tip and improved performance of ships removal
◎ Applicable to hole cutting and process of annular groove on various magneric drills and press

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Type	Size
DNTJ-50500	50*75
DNTJ-50510	51*75
DNTJ-50520	52*75
……‍	……
DNTJ-51400	140*75
‍DNTJ-51450	145*75
DNTJ-51500‍	150*75‍

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Q:Cobalt containing special stainless steel drill bit, 4mm angle, do not move?: What drill, what power, what speed?.Iron and steel complex, hard harder than stainless steel.The drill is to be sharpened.

Q:Woodworking drills, classification, woodworking drills are those categories, the more specific the better: Because the wood is soft, so in the material above, generally choose easy processing brand S45C.However, some foreign countries use high-speed steel to manufacture woodworking drills in order to improve the tool efficiency.

Q:What are the brands of homemade twist drills?: You drill stainless steel, you can try the square King's kind of fully polished red box. Iron, ordinary steel plate with yellow box. Relatively speaking, the price will be good. If you're rich, buy an old job or go to work. In addition, foreign brands in addition to M42 material is indeed not domestic, the other are domestic manufacturers processing. It has many big clients in foreign trade. Of course, you can also choose some small manufacturers of products, good luck can also buy the same quality products. Twist drill is so, set angle is greater than the material. Because I used the system to bake yellow, the square king used to drill stainless steel drilled 30 holes, so recommend it. His whole grind should work better, and the price is much more expensive than that of huang.

Q:What steel blade drill bit, hardness above 60: Hello, it is recommended to use steel bit, two hundred to three hundred RPM (8mm below the hole, 8mm or more to reduce the speed), pay attention to cooling, the amount of feed should not be too large. For reference only, I hope it will help you.

Q:How big is the smallest bit?: A drill bit (Drills) is a tool used to drill through holes or blind holes in solid material and to expand existing holes. The commonly used drills are mainly twist drills, flat drills, center drills, deep hole drills and casing drills. Reaming drill and countersink drill is not in solid material drilling, but it is also customary to put them in a bit.

Q:With what drilling steel: Tungsten steel (hard alloy) with high hardness, strength and toughness, good wear resistance, heat resistance, corrosion resistance and a series of excellent performance, especially high hardness and wear resistance of it, even at a temperature of 500 DEG C also remained unchanged, at 1000 degrees C still have high hardness.

Q:What kind of steel do you need to drill?!: Some use ion implantation technology to inject titanium, nitrogen and carbon into the substrate at a certain depth, which not only improves the hardness and strength, but also makes them move when the drill is regrinding. Also, a diamond film is formed at the top of the drill bit by physical means, which greatly improves the hardness and wear resistance of the drill bit. The hardness and strength of cemented carbide are not only related to the ratio of tungsten carbide to cobalt, but also to the particle of powder.

Q:How to recognize the quality of twist drills?: Then the heat treatment: you can simply judge the surface texture of the drill with the naked eye, which shows the good heat treatment, and the worse the contrast. Especially the black drill, some heat treatment is not in place, and black treatment is used to cover the burn of the drill. Production of the giant black diamond quality is stable, the small factory to keep in mind the black diamond.

Q:How does an electric drill drill a hole in the 16mm with a 10mm drill bit?.: 1. Use a ruler to measure the length of the 16MM around the wall. Mark the mark with a pen.2. Drill the drill with 10MM, drill a 10MM hole in the middle of the mark.3, with 10MM hole as the center, continue to open the drill, slowly rotating in a clockwise manner.4, rotating to the mark position, 16MM hole will be completed successfully.Remember, you can't go too far. You should take it slowly. You can turn it clockwise and counter clockwise for a while.

Q:What's the difference between white, black, and yellow twist drills?: Black becomes nitrided and can be used to drill aluminum products, i.e., soft materials, after improved properties

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