HSS SALE annular cutter(High performance version) DAHK-4

HSS SALE annular cutter(High performance version) DAHK-4 System 1

HSS SALE annular cutter(High performance version) DAHK-4

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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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DAHK-4

D.O.C. 50mm
Unit：mm
◎ Made of high quality & super tough high speed steel with multi-cut geometry for ply-cutting and lower friction to reach better endurance and less breakage . Applicable to hole cutting on hard-cut materials
◎ TiN or TiAlN coating are available upon request
◎ Applicable to hole cutting and process of annular groove on various magneric drills and press , like Alfra , Hougen , Jancy , Euroboor , BDS , Ruko

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Type	Size
DAHK-40120	12*50
DAHK-40130	13*50
……	……
DAHK-40400	40*50‍

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Q:Woodworking drills, classification, woodworking drills are those categories, the more specific the better: At present, the international woodworking drill popular three awl auger drill bit, drilling ladder.Three sharp woodworking drill easy to locate, high-speed cutting, the wood powder, usually used to process small holes.

Q:What bits of percussion drills are made of?: Cemented carbide: an alloy material made from powder metallurgy by hard metals and bonded metals of refractory metals.

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:The whole alloy drill often breaks: 1, choose machinery with better mechanical performance to minimize the unevenness of bit feed.2, fixed firmly machined workpiece, minimize and avoid workpiece vibration, workpiece beating phenomenon.3, the processing of the feed should be stable, slow, slow, remember to act too hastily.4, if all aspects of the existence of factors, can not guarantee smooth drilling, you may wish to use carbide inserts bit. The body of this drill is made of tool steel, except that the cutting parts are inlaid with carbide inserts. The drill bit does not hurt even if there is a certain amount of vibration when drilling. It will not cause the bit to break.

Q:Why not hammer drill iron: Motor protection device: comprehensive in use will inevitably have hard granular access to a machine (especially on the machine to work on drilling, such as drilling on the top wall), if there is no certain motor protection, rotating at high speed can easily be hard break or scratch enameled wire, eventually lead to the motor failure.

Q:What is countersunk drill, flat head drill?: Countersunk drill: it is a well formed drill bit that is basically used for machining countersunk headsA drill bit used to hide six square screws

Q:What drill does 42CrMo use to drill better?: Drilled outlet, rotary car hole boring other shapes

Q:Drills, drills, heating drills, will they be annealed?: If the cutting heat is high, the tool material will be softened, the cutting performance of the tool will be reduced, and the tool wear will be accelerated, thus affecting the quality of workpiece processing and shortening the service life of the tool.

Q:How much bit should we use to punch the M5 hole? Tapping with Duodasi attack? Why use 8.3 drill bit in the hole of M10? How do you know how big it is to punch and tap?: If the material soft bottom be slightly smaller, so hard to be slightly larger. As the aluminum tapping hole to drill small, alloy steel tapping will be slightly larger. M5 has a pitch of 0.8, so use 5-0.8=4.2's drill. The pitch is 1.5 M10, normal use 8.5 bit, if 8.3 words may be used as the material of soft, normal bit will lead to larger hole.

Q:Who can do this? Put the drill into it: Change the hammer and steel ball to the service point. 3, time does not need, may not plug in, according to 1 of the method of force a few times just fine

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