TCT annular cutter with Weldon shank(Version P) DNTP-4

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10 pc
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5000 pc/month

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Product Description:


D.O.C.  50mm
31.75 weldon shank for clamping strength and finish . Suitable foe large cutter above Φ61mm
Selected special-purpose carbide tips with multi-cut geometry for ply-cutting and lower friction . Reduced damage of tip and improved performance of ships removal
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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Q:What size drills and taps are required for drilling M10's internal threads?
Internal thread drill M10 should choose the drill and tap should take into account the thread pitch. If you are a standard thread M10*1.5, thread holes should be used with 8.5 bit;
Q:How to use glass drills?
The drill bit is clamped on the ordinary hand drill, and the finger is used to select the lower speed of the switch. If you want to drill holes will not collapse, then drill a part from the side, and then turn over the surface drilled through.
Q:The installation method of the electric hammer drill?
The installation method of the electric hammer drill:When installed, the drill chuck hammer directly inserted, can rotate around until the drill bit is automatic locking, finally pulling the drill bit to determine whether it is locked correctly.
Q:Bit grinding, hair and technical requirements?
A standard twist drill is a very common drill tool. The utility model has the advantages of simple structure and convenient sharpening, but it is not an easy task to sharpen the grinding method and the skill well.Factories also have such a situation, the work of more than ten years of workers, grinding well, twist drill also quite a lot. What is the reason for this? The key is methods and techniques. If the method is mastered, the problem will be solved.
Q:What's the material composition of the electric hammer drill?
Hard alloy with high hardness, strength and toughness, good wear resistance, heat resistance, corrosion resistance and a series of excellent performance, especially high hardness and wear resistance of it, even at a temperature of 500 DEG C also remained unchanged, at 1000 degrees C still have high hardness.
Q:What kind of drill is used on the stainless steel countertop?
Stainless steel cabinet table drilling, stainless steel table need to prepare two kinds of drilling tools, a cutting stainless steel, the other is a layer of wood cutting stainless steel, stainless steel and wood cutting are used in cutting machine, electric drill is indispensable, hollow wood also used 3 cm diameter hole.
Q:What causes the drill bit to break at the end of the hole?
Small bit not used high speed, with small feed amount.A small drill can withstand torque is small, the use of high speed with a small amount of feed, can reduce the small rotating cutting output, so as not to drill to bear large torque.
Q:The basic angle of twist drill
The front angle is 2, and the front angle is the projection angle of the two main cutting edges on the plane parallel to them. A small sharp angle easily cut workpiece, axial force is small, and the cutting edge length increases, cutting nominal thickness decreases, conducive to heat dissipation and improve tool life; if the front angle is too small, then the bit intensity of deformation increases, the torque is increased, the breakage of the drill bit. Therefore, a reasonable front angle should be sharpened according to the strength and hardness of the workpiece material. The front angle of the standard twist drill is 2 and phi is 118 degrees
Q:How do you drill a sharpening bit?
Grinding machine with a bit grinding, you can, our company is using the Muller machine drill grinding machine, grinding effect is very good.
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.

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