HSS-E annular cutter with universal shank DNHC-2

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

HSS-E annular cutter with universal shank DNHC-2

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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-2

D.O.C. 25mm
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.

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Type	Size
DNHC-20120	12*50
DNHC-20130	13*50
DNHC-20140	14*50
DNHC-20150	15*50
……‍‍	……
DAHK-20580	58*50
DAHK-20590	59*50
DAHK-20600	60*50
DAHK-20650‍‍‍‍‍‍	65*50‍

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Q: What drill heads are used to drill holes in diamond heads?: A drill bit (Drills) is a tool used to drill through holes or blind holes in solid material and to expand existing holes.

Q: What drills do we use to drill jade?: Process for drilling holes on the jade carving is the use of drilling needle method, with a needle, rotated on the jade carving, jade sand "," to grind a shallow pit on the surface, then the pit, until the jade material wear. The drilling period "jade sand" has been in the pit with rotating rubbing hole wall, so the upper hole than the lower part to bear "jade sand" friction, so that by this method to hit the hole, the hole is small in shape.

Q: What bit is better for drilling 304 stainless steel?: Alloy bit generally refers to the hard alloy bit, divided into integral, welded, indexable inserts and removable head. Generally the whole tungsten alloy drill bit materials, imported and domestic alloy bit is very different. Imported alloy bit usually adopts VHM micro grain hard alloy (ISO K40), the type of ultrafine particles (0.6 m), will take the high-quality alloy bit surface coating, such as chromium aluminum nitride (AlCrN) coating, the coating layer of coating, the thickness of 4 m, the micro hardness is up to 3200HV, the friction coefficient of 0.35 the thermal stability, up to 1100 degrees celsius. After coating, the drill color is bluish gray. After coating, the alloy drill can process low alloy steel and high strength steel. High steel can reach 54HRC.

Q: How to install expansion screw? How big is the screw? What size is it? Or what? How do you see the size?: If the expansion screw is installed, drill with the drill bit first, then plug the expansion screw without the nut into the hole, and then tighten the nut with a wrench.

Q: What's the difference between a deep hole drill and an ordinary bit?: Ordinary drills are of relatively low hardness, impact resistance and wear resistance. The drilling accuracy, drilling speed and the drilling speed of conventional drills can not be compared with those of deep hole drilling.

Q: Impact drill and electric hammer drill is what is the difference: The drill is the same, but the bayonet isn't the same,Impact drill hammer drill bit is triangular, rectangular, the force will be greater.

Q: What method should we pay attention to when drilling small holes and long holes in plain drills?: Coolant added a lot, although the cooling effect is good, but it will make drilling cuttings are not easy to row out. Just use a brush with a coolant, and when the drill is lifting the cuttings, brush some of the coolant on the drill. Each time the drill is drilled down, do not enter too much at once. Especially in the hole drilling more and more deep, but also frequently drill bits, cleaning up drilling chip.

Q: What size of drill should we use to drill 10 holes?: Use Phi 10 bit. Use drill chuck quality is good (without obvious shaking) electric drill hole, no margin problem.

Q: How do you drill a drill?: 6, after grinding, the drill rotation, simulation, drilling, cutting the status of inspection, to see if there is no wrong place, if there is further grinding;7, grinding the cross edge, that is, symmetrical sharpening drill bit after the blade;The 8 big bits can be sharpened by grinding on the side of the grinding wheel;9, steel bad twist drill, the vertex angle can be properly worn. .

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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