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: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
Q:Can HSS drill bits be drilled into stainless steel?
Yes, but it's best to have cobalt high-speed steel bit, but it's better to use a carbide drill. High efficiency and cost performance. We can make stainless steel special drill.
Q:14 what big expansion wire does the drill use?
Different expansion bolts form different drill diameters, and the maximum outer diameter of the bolt can be measured.
Q:Why is the drill angle 118 degrees?
HSS high speed steel drill bit: vertex angle is generally 118 degrees, sometimes greater than 130 degrees, HM carbide drill bit: vertex angle is generally 140 degrees; straight groove drilling is often 130 degrees, three edge drill is generally 150 degrees.
Q:How do I take out an electric drill bit
Drill bit: with a key, insert the key into the side hole of the drill sleeve and loosen the bit to remove the bit.
Q:Angle action and characteristics of standard twist drill
The back angle of the selected point on the main cutting edge of the twist angle alpha Om is expressed by the feed back angle alpha Om in the point column section. The column section is the point m of the main cutting edge, a line parallel to the axis of the drill, and the cylindrical surface formed by the rotation of the line around the center of the bit. The alpha Om changes along the main cutting edge, and the closer to the center, the greater the alpha Om. The back angle of the outer edge of the twist drill is usually 8 to 10 degrees, and the back angle of the transverse blade is 20 to 25 degrees. This can compensate for the influence of the angle of the main cutting edge on the actual working angle of the main cutting edge due to the axial feed motion of the bit, and can adapt to the change of the front angle.
Q:How do we drill a tile with a thickness of 5mm glazed, without a glass bit, only the impact bit? What's up? The brick is attached to the wall!
If the tiles under not hollow cement, Tim is very full, can not grasp, if you should buy a special tile bit, namely triangular bits, it does not produce tremor phenomenon, easy positioning, cut resistance, opening soon, there are the ordinary chuck used on an electric drill to need to pay attention to slow speed in particular, is just beginning to open and slow speed when wearing. When in use, add coolant (not too much, but keep adding water). Drilling can be done on hard materials such as glass, stone and tile. 3MM-16MM have, but don't drill edge or side (away from 2 cm above tile seam), or to use the glass or diamond drill hole, is used to watch the speed slower (800-1000 revolutions per minute or so), continue to water cooling (don't need too much, but continue to add water) non dry drilling! High temperature friction, causing serious wear and tear, affecting the use effect!
Q:M2.5 hit the bottom teeth with much bit
Then, the chip 2.5-0.45=2.05 is used to tap bottom drill bit drilling. If it is an extrusion tap, the formula is 2.5-0.45/2=2.275's drill.
Q:M6 threads need to drill much bottom?
A spiral shaped continuous raised part having a specified cross section on the surface of a cylinder or cone. According to its parent thread shape is divided into cylindrical and conical screw threads; according to their position in the matrix is divided into outer and inner thread, according to the section shape (teeth) divided into triangular thread, rectangular screw, trapezoidal thread, serrated thread and other special shape screw.
Q:M3 threaded hole. The bottom should choose large diameter drill bit
The bottom of the thread hole of the above M3 is the standard diameter of the drill bit made of ordinary materials. Of course, the actual production operation because the M3 screw mechanical properties of various materials is not the same as the processing of the material properties through appropriately adjusting, processing, such as M3 stainless steel threaded hole, must be to increase the diameter of the bottom hole processing, because the mechanical properties of stainless steel and ordinary materials are not the same. Stainless steel material hardness high, heat dissipation is poor, the reason of higher plastic, bottom diameter with a diameter of 2.7 bits. So in the actual operation, the operator should be through different material properties, adjust the threaded hole diameter of M3, so as to prepare for the next tapping.

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