HSS rail cutter DRHX-2 D.O.C. 25&50mm

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‍‍DRHX-2&4 ‍‍

‍‍D.O.C. 25&50mm‍‍

‍‍◎ Made of super tough high speed steel , superiorly-designed geometry for better endurance

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‍‍◎ Supply Φ19.0mm and Φ19.05mm weldom shank

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‍‍◎ Applicable to hole cutting on railtrack , like PD3‍‍‍

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Q: Which is better, a white drill or a black drill?: Another is between white and amber. Or above amber. This type of drill is called titanium drill, divided into decorative plating and plating industry. Decorative plating don't have any effect, is good-looking, golden. Very good industrial plating, hardness can reach HRC65 degrees, higher than cobalt drilling hardness (HRC54 degrees).

Q: Is the drill fast to feed, easy to break, or slow to feed, easy to break?: The feed is fast, the drill bit is still constant, the feed is fast, the amount of cutting per tooth is large, the cutting force is large, and when it exceeds the strength limit of the drill, the drill will break. Feed too slowly is easy to wear drill bit, because the feed is too slow, cutting edge cutting more times, so easy to wear.

Q: What is the minimum specification for hollow drill bits?: Hollow drill bits are available:1. diameter minimum 12mm, maximum can do 160mm;2. drilling depth are 25mm, 35mm, 50mm, 75mm, 100mm and so on;3. cut to 35mm: in diameter, 12mm to 50mm in diameter. Cut depth is 50mm: diameter from 12mm to 100mm. Cut depth is 75mm: diameter from 16mm to 100mm. Cut depth is 100mm: diameter from 18mm to 100mm.

Q: How to remove the electric clock bit: The outer part of the drill joint is provided with a plastic sleeve, and one hand pushes the plastic sleeve inward, and the other hand holds the drill bit to pull out the drill bit.

Q: Tap with 5 taps. How many drills are drilled?: Calculation formula:The workpiece is a brittle material (cast iron, bronze, etc.): the bore diameter is D=d- (1.04 to 1.08) tThe workpiece is made of plastic material (steel, copper, etc.): bore diameter is D=d-tD: nominal diameter of thread, t: pitch, unit: mm

Q: What is countersunk drill, flat head drill?: Flat drill: literally, a drill without head angles, somewhat similar to a milling cutterBut at the time of processing

Q: The drill marked difference with hammer marks: There are signs and marks on the hammer drill bit, that this tool is the impact drill, when the adjusting knob is pointing to the side of the tool bit, only the rotation function, is also the only single drill; when the adjusting knob is pointing to the side of the tool is a hammer, impact drill function. The impact function used in wall drilling, drilling alone for wood, metal, and other drilling books

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: The difference between left and right drills used to drill holes: The use of left-hand drill, mostly because the machine tool design can not meet the needs of the right-hand bit, as some spindle can not meet the right-hand thread, you must use the left-hand thread. The specific situation is not practical, it is difficult to say too clear.

Q: What do you use for drilling walls?: The hammer can drill the wall. An electric drill is out of the question. Electric drill, electric hammer, impact drill is used to punch the hammer, generally used to drill holes in the concrete and other hard objects, the drill bit is alloy steel, in drilling at the same time, the function of a hammer. An electric drill is used to drill holes in a more malleable object; the drill bit is usually steel. Both hammer percussion drill and drill function, it can be used when the hammer drill, and when. There are two kinds of drills.

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