HSS annular cutter(High performance version) DAHK-2

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Product Description:

DAHK-2

D.O.C. 25mm
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

Type
Size
DAHK-2012012*25
DAHK-2013013*25
DAHK-2014014*25
DAHK-2015015*25
…………
DAHK-2037037*25
DAHK-2038038*25
DAHK-2039039*25
DAHK-2040040*25


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Q:How long the hand-held electric hammer drill?
Hammer is portable!Electric hammer drill know there are 1.2 meters, the longest not seen don't know
Q:How big is the smallest bit?
A drill bit (Drills) is a tool used to drill through holes or blind holes in solid material and to expand existing holes. The commonly used drills are mainly twist drills, flat drills, center drills, deep hole drills and casing drills. Reaming drill and countersink drill is not in solid material drilling, but it is also customary to put them in a bit.
Q:What drills do we use to drill jade?
A grinding head tool that is bonded with diamond (diamond) or diamond powder.
Q:What is the difference between cobalt titanium alloy drill
A drill is the first part of a drill or hand drill.
Q:What drill is used in stainless iron drilling?. What color?
The best is to make the stainless steel material of cobalt containing material with high speed steel drill, high-speed steel drill is cobalt containing silver, do not know the landlord of the silver white bit is not high speed steel containing cobalt, if not, you can buy only high speed steel cobaltiferous material drill (also called stainless steel special under the best bit), buy imported, not much of your money, the quality difference is too large domestic drill. Or if not, can change the drill bit Ti, Ti is abrasion resistant, average life is 3 times more than the standard twist drill
Q:Which is better, a white drill or a black drill?
Most of the black drills in the market are only black (to cover the surface of the blade or black), but the actual use has not been effectively improved. The full grinding twist drill manufacturers, industry and trade, production, engineering, far east Lei this several quality have great advantages in the domestic bit. With imports, or quite a lot of difference, after all, a big difference in price. In addition, the quality of Taiwan's SUS Su is also good.
Q:When tapping M4, M5, M6, M8 and M10, how big bits of drill (ordinary steel) are used?
Extrusion tap:Screw - pitch: D=d1-0.49P P = 2. In the case of M10x1.5, hole size D=10-0.49 * 1.5=9.27. (recommendation 9.3)Screw - pitch: D=d1-0.42P P = 0.8. In the case of M3x0.5, hole size D=3-0.42 * 0.5=2.79. (recommendation 2.8)Therefore, cutting tap hole were recommended as follows: 3.3, 4.2, 5, 6.8, 8.5
Q:Is it OK to drill holes on tiles with an ordinary bit? Will the tiles crack?
But my home is cheap tiles, give you a weapon:I use the impact hammer drill, not too big eyes when drilling, I only through the 6-8 (i.e. 6-8mm diameter) of the eye;
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:M2.5 hit the bottom teeth with much bit
M2.5 is the diameter, you want to use this diameter to subtract the distance of the tooth, that is, the diameter of the drill. In the metric system, the distance of M2.5 is 0.45.

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