HSS-E annular cutter with Weldon shank DAHSK-2

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D.O.C.  25mm

Weldon shank , with more stable clamping for stable cutting and finish of holes
Additional one hole on the shank of cutters≤40mm , fit arbors with 19.05 bore as well as quick-change system
Made of super tough high speed steel with mulit-cut geometry for ply-cutting and lower feiction to reach better performance of endurance and removal of chips
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:Hammer can play with an electric drill steel, can you?
Hammer: a safety clutch of electric rotary hammer with a pneumatic hammer drilling mechanism. Hammer is the use of compressed gas piston, impact drill bit, need not make much effort, can open 6--100mm in concrete, brick, stone and other hard materials on the hole hammer in the above-mentioned materials on the opening of high efficiency, but can not open holes in the metal.
Q:What kind of drill bits are used in glass drilling?
Cemented carbide bit is a kind of crushing load which depends on the drilling pressure and self rotation to break the rock.
Q:How do you determine the speed of the drill? Is there any standard?
Different diameter of the drill bit, drilling speed, diameter smaller, higher speed, otherwise low;
Q:How do we calculate the length of a drill for a bored pile drill?
There are two main types of drilling rigs: rotary drilling machine and impact drilling machine. The bit of rotary drill is divided into three kinds of scraper drill: suitable for quicksand and silt layer. Only the diameter and weight limit, no length limit cone drill: suitable for soft stone and hard soil. There is no length limited hob drill: suitable for hard rock layers. There are weight limit and hob arrangement, hardness requirements above, there is no drill length requirements. Impact drill: it is to use the weight of the drill to squeeze the soil into the hole, and the hole of the rock is also to use the bit itself to destroy the rock structure surface into holes. Only the weight on bit (according to the requirements of classification of rock hardness determine bit weight, diameter of 2-2.5 meters in the drill hole, the weight of at least 10 tons; 1.5-2 meters, bit weight of about 5 tons, 1.5 meters below 3 tons. For impact drilling, the length of the drill has a certain requirement, usually 1.8-2.5 meters high. Because the longer the drill bit, the stronger the impact drilling guidance function, the smaller the possibility of partial hole, hammer and hammer, the higher the standard of drilling. There are no rules and regulations, and you can succeed by experience.
Q:What drills do you use for screw holes?
The drill depends on the material of the workpiece, and plain steel can be used with plain twist drills.
Q:CNC machine tools I use 6.5 bit drilling out is 6.7, what method can be solved?
Hello, pore diameter of drill cutting drill drill slightly is a normal phenomenon. Because the drill bit has a certain length, and a twist, when rotating due to circumferential force will produce slightly swinging, thus affecting the processing size.
Q:What measures can be taken to prevent the bit from breaking?
I. to drill through, reduce the pressure. Slow down. Two. Drill the bit into a group
Q:What kind of drill is drilled by 40Cr heat treatment with hardness above 40 degrees?
On the other hand, putting a blade on a large cutter is not necessarily a costly mistake. The cost of the CBN blade is 8-10 times that of the carbide blade. In the use of these advanced material blades, if the cutting speed and feed is not correct, will affect product quality and tool life. Because it is difficult to realize the stock reserve, it is necessary to evaluate the processing benefit and the whole process. Value from the whole process, if we consider the adjustment and replacement of the blade time, even if the use of carbide tools with low cost to meet the requirements of tolerances and surface accuracy, so the cost is expensive. Only when the production capacity, processing cycle and blade performance are well coordinated can the actual machining capability eventually be formed.
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:Why can an electric drill pinch the drill so tightly
Because of the three teeth that had bitten the drill, there was a fixed steel ring. Ah, the three teeth were cone-shaped, and they rolled down, so they snapped

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