• HSS-E annular cutter with universal shank DNHC-5 System 1
  • HSS-E annular cutter with universal shank DNHC-5 System 2
  • HSS-E annular cutter with universal shank DNHC-5 System 3
HSS-E annular cutter with universal shank DNHC-5

HSS-E annular cutter with universal shank DNHC-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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DNHC-5     

D.O.C.  75mm
Unit
mm
Universal shank for various magentic drills
Made of super tough high speed steel with mulit-cut geometry for ply-cutting and lower feiction to reach better performance of endurance and removal of chips
Applicable to hole cutting and process of annular groove on various magnetic drills and press.


Type
Size
DAHK-5018018*75
DAHK-5019019*75
…………
DAHK-5050050*75


Q: Hammer can play with an electric drill steel, can you
The disadvantage is that the vibration is large and has a certain degree of damage to the surrounding structures. The steel bars in concrete structures can not be passed smoothly. They can not be too close to the building because of the scope of work.
Q: What is the standard angle of the drill bit?
For example, HSS high-speed steel drill bit: vertex angle is generally 118 degrees, sometimes greater than 130 degrees; sharp blade; accuracy (blade height difference, symmetry, jitter) requirements are relatively low. There are many ways to correct the transverse blade. Hole roughing and less demanding, we generally use more. HM carbide drills: the top angle is generally 140 degrees; straight fluted drills are usually 130 degrees; and three edge drills are usually 150 degrees. The blade and nose (edge) are not sharp, often passivated, or inverted blade and chamfering, and require high accuracy. The horizontal edge is often into a S- shape, in favor of chip breaking
Q: What is the difference between steel and high-speed steel?
Tungsten is very high hardness of the metal material, is widely used in industry requires high hardness materials in bit place. But the price is extremely expensive, so an eraser will be 100 meters high steel prices also rose, recently.
Q: What bits of percussion drills are made of?
Purpose: hard alloy is widely used as a tool material, such as turning, milling, planing, drilling, boring, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone and steel, can also be used for cutting steel, stainless steel, high manganese steel, tool steel and other hard processing materials.
Q: What are the brands of homemade twist drills?
. After roasting yellow, the drill looks yellow, not white or gold. In addition, what foreign doctors are actually made in China, because foreign countries have been eliminated, the total production of this product. The added value is too low. New twist cards and old brands in china. Veteran of the most stable should be Kazakhstan workers, workers. But to tell the truth, in fact, as long as the material is not deceptive, the accuracy of the geometric angle, many companies can do such a degree.
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: I'm going to drill 10.5 of the thread. How many holes do I have to drill before tapping? How big is the tap?
In the national standard, the first series of thread sizes are M10 and M12, so the 10.5 corresponds to the M12 thread. Check the screw pitch, diameter, bottom table, check the corresponding M12 bottom 10.25mm.
Q: What drills are used in tapping 304 stainless steel?
Asked to sell drill bit, stainless steel drill bit, usually they know. Our company uses cobalt cobalt bit. It's very durable and works wellIf there's anything better, I don't know.
Q: Do you have any special drill for aluminum alloy?
Twist drill grinding points need to pay attention to, first of all to ensure that the correct grinding angle. The two main cutting edge length and angle to symmetry, there is a formula: drill blade surface on the wheel. The drill shaft out of the front, left oblique angle. From the back edge grinding angle, swing up and down the tail don't tilt.If necessary, the cross edge can be repaired, and the trimming edge and the chip separation groove can be polished, and the blade should be cooled during the grinding process to avoid the edge annealing.
Q: An expansion screw with a diameter of 20. How much impact bit do you need to use?
The table above is the reference value of the match;2, the specific adaptation, also need to be flexible according to the actual situation, if the fixed place expansion screw is loose, need to be reduced if the fixed impact drill specifications; expansion screws tight place, according to the above table match.

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