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: How to change the drill bit of impact electric drill?: Install the drill bit: or the handstand impact drill, the left hand down to the plastic ring, the right hand with the drill, rotating around the insertion

Q: How do I turn on the electric bit?: There are two kinds of commonly used, a card, a clip, clip to press the drill chuck can pull out the drill, clip with keys to open, can also be used when a round steel chisel, hammer knock loose counterclockwise on the line.

Q: How do the new pros and cons drill the drill bit without the key?: There are two ways to unload and unload manually:Methods: hand unloading drill drill handle on the ground, pine along the direction of the drill bit to find a hard thing with the hammer hit, the release, remember that it is right to bear left loose, otherwise it will be more and more tightly card.The method of using a card or key to pry it open:(1) card: the electric drill is lifted and the clasp is removed to remove the drill bit;(2) bevel key: remove the bit by pressing the key with an anti clockwise ring, then the drill ring can be taken out.

Q: Is it OK to drill holes on tiles with an ordinary bit? Will the tiles crack?: Not a bit of the problem, mainly tile problems, good quality tiles are not easy to crack.

Q: Bit grinding, hair and technical requirements: Factory general grinding drill bit is to drill, drill into the general R type, N type, in fact, a total of four grinding twist drill can drill point: X type, R type, S type, N type, in fact, the little bit into these kinds of significance, we all know the drill bit what is not worth the money, make money on it is the efficiency of above treatment can only guarantee the basic meaning of the drill grinding drill bit, and to want to drill efficiency, to the point of efforts to drill bit is related to efficiency.

Q: What's the difference between a deep hole drill and an ordinary bit?: What's the difference between a deep hole drill and an ordinary bit? Concretely speaking:Deep hole drilling is also called carbide gun drill, and most of the materials used are titanium, cobalt and steel. The deep hole drill is welded together by three parts of a drill stem, a drill rod and a drill bit. There is a through hole in the middle. It is suitable for drilling cast iron, carbon steel, copper, aluminum alloy, alloy steel and so on. The gun drill will complete the drilling, boring and reaming at once, and at one time, the high precision (IT6-8 grade), fine straightness (0.16-0.33mm/1000mm) and low roughness (Ra3.2-Ra0.1) holes can be machined. Its drilling speed of 30-100 meters / min..

Q: What do you mean by 5 times diameter drill?: The meaning of 5 times diameter drill:Drill depth is 5 times the diameter of the drill bit.Double diameter refers to how many times the diameter of the meaning, mainly refers to the length of the drill bit and bore ratio, is to measure the function of the drill an important indicator, that is, the larger the diameter, the greater the depth of drilling.

Q: What is a two center drill? What's the function?: The drill has two centers in the axial direction, generally used for reaming and used in salt gypsum layers, mainly to make drilling tools easy to pass through.

Q: The difference between left and right drills used to drill holes: Difference upstairs has been said, the drill designed to be right-handed, there are 1 reasons, the main direction of the motor. 2 because of the relationship between the centrifugal force, designed to turn right, more labor-saving. Taps are designed solely for ease of use