TCT annular cutter with thread shank DNTL-4

TCT annular cutter with thread shank DNTL-4 System 1

TCT annular cutter with thread shank DNTL-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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DNTL-4

D.O.C. 50mm
Unit：mm
◎ M18*6/P1.5 thread shank , Suitable on Fein magnetic drills
◎ 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

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Type	Size
DNTL-40120	12*50
DNTL-40130	13*50
DNTL-40140	14*50
……‍	……
DNTL-40480	48*50
‍DNTL-40490	49*50
DNTL-40500‍	50*50‍

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Q: What is a water bit?: Diamond engineering thin-wall drill bit adopts advanced sintering process with high performance price ratio. Drilling speed, high efficiency. It is recommended to use fixed drilling rig or hand drilling rig. Widely used in building, water, electricity, gas, heating, air conditioning, pipe installation hole hit the wall. Drilling, cutting and coring of expressway, airport runway, bridge and tunnel. Drilling of non-metallic hard and brittle materials such as stone, ceramics, etc..

Q: What is the difference between steel and high-speed steel?: Tungsten is a kind of high speed steel was non alloy steel containing tungsten before, now use less, there are people on the use of power tools. Before the steel generally used for ordinary tool making hand taps, drills, saws and cutting speed is relatively low, the hardness is about 60~63HRC. High speed tool steel is now divided into low alloy, high performance and other types, widely used in the manufacture of various cutting tools.

Q: How do you get yellow on the surface of the drill bit?: The Yellow above the drill is not baked. It is a kind of coating which is evaporated and ionized by the titanium metal in the high temperature and high vacuum environment. At the same time, the coating is added to the metal surface after the reaction of the reaction gas. It is also called PVD coating.

Q: Tap 10 taps, what size drills do we use?: In general, with nominal diameter equal to the diameter of the bottom hole pitch reduction. 10-1.5=8.5, that's 8.5. However, if the quarterly demand is high, follow the formula below:D1=d-5H/8 H=0.866p:D1-- drilling diameterD - thread diameterH - theoretical height of threaded teethP - pitch

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: The basic angle of twist drill: Front angle gamma Om (since the front surface of the twist drill is a spiral surface, the front angles of the points on the main cutting edge are different. From the outside, the center angle decreases gradually. The rake angle at the nose point is about 30 degrees, and about -30 degrees near the cross edge. The front angle on the cross edge is -50 degrees to -60 degrees.

Q: What kind of drilling bit is good for stainless steel?: The characteristics of stainless steel is high toughness, easy to stick a knife. So the drill hardness is high, surface finish better than ordinary bits, the bit angle large (130--135 degrees). At the same time to the full amount of feed and cooling. More than 0.15mm as much as possible without cutting in cold hardened layer. The cutting speed is as low as possible to reduce the cutting temperature. The cutting fluid is made of concentrated emulsions. Commonly used stainless steel drills are: high cobalt bit (M35 bit, M42 bit), in which the M42 bit is the most cost-effective, and carbide drills are also available.

Q: 1.5 of the stainless steel plate to drill 1.2 holes, the drill has broken a lot of roots, what kind of material with a bit better? How much speed, how much feed?: First of all, drilling stainless steel must use high-performance drills, such as high cobalt, high vanadium or alumina bit material.

Q: Grinding the drill bit, how can grinding, and the method of quick crash is what ah?: Deviation angle of drill shaft." Here is the relation between the axis of the drill bit and the surface of the wheel. "Frontal angle", that is, the top angle of 118 degrees + 2O half, about 60 degrees, this position is very important, directly affect the drill point size and the main cutting edge shape and cross blade edge angle. Often. One and two refers to the relative position of the drill before sharpening, and the two should take overall consideration, not to set aside the edge of the knife and ignore the angle of setting or to lay the oblique axis and ignore the blade. These errors are often present in actual operations. At this point, the drill is ready for contact with the wheel in place of the correct position.

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!: Glass drill points: 1. tilt first, tiles, glass (other materials) surface grinding a shallow trace. 2., the drill bit slightly after, continue to wear out the deeper crescent mark. 3. put the drill straight and continue at the original speed until the major is finished. (pay attention to water when drilling.)

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