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: What drill holes are used to break the screw?: If the screw is broken and the drilling is not good, it is recommended to solve the problem with edm. A six or a slot is machined at the broken screw and then the screw is broken inside with a six square wrench or screwdriver. The electrode size is different, can process different sizes of broken screws, M3-M50 can.

Q: Relationship between bit diameter and rotation speed: Secondly, it is related to the grinding, feed size, material and so on. Such as: stainless steel drilling, the drill speed and feed volume should not be too large, the need for flexible use.

Q: Do we need drill bit for cast steel drilling?: In the drilling of concrete materials and stone materials, the use of percussion drill, with masonry drill, cutter material is generally hard alloy. Ordinary household, do not drill holes in cement wall, use ordinary 10mm specification flashlight drill.

Q: What measures can be taken to prevent the bit from breaking?: In drilling, the pressure must not be too great for the drilling hole to avoid breaking the bit.

Q: How big are the 8 bits that have worked up?: If 8mm's expansion pipe uses a drill with a diameter of 8mm, if it is a 8mm expansion screw, use a drill with a diameter of 12mm.

Q: What's the difference between a drill bit and a tap?: The drill bit is specially used for drilling, while the tap is used for tapping

Q: What is the maximum available drill bit for an electric drill with a maximum diameter of 10mm?: 13mm, there's a three column handle, which is equivalent to reducing the diameter of the chuck and the direction of the drill is large.

Q: Method for processing coolant hole of internal cooling bit: In the western market, there are high-speed steel and powder high-speed steel internal cooling tools, their processing technology is more complex, take the core material, hot pressing, cold drawing, core pulling material, hot spin and spiral way. From product applications, there are drills, taps and reamers for internal cooling.

Q: An expansion screw with a diameter of 20. How much impact bit do you need to use?: An expansion screw with a diameter of 20 requires an impact drill with a diameter of 26mm.

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.

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