HSS-E annular cutter with Weldon shank DAHSK-2

HSS-E annular cutter with Weldon shank DAHSK-2 System 1

HSS-E annular cutter with Weldon shank DAHSK-2

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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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DNHX(K)-2

D.O.C. 25mm
Unit：mm
◎ 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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Type	Size
DAHK-20120	12*25
DAHK-20130	13*25
……	……
DAHK-20650	65*25‍

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Q: New drills usually need sharpening before they can be used. Why?: Grinding the drill bit again, grinding the back angle of the arc transition and the proper vertex angle so that the drill can bore smoothly. No sanding is available, but there is no radian in the rear corner, which can cause vibration instability.

Q: How to change the drill bit of impact electric drill?: Install the drill bit: or the handstand impact drill, the left hand down to the plastic ring, the right hand with the drill, rotating around the insertion

Q: What drill holes are used to break the screw?: The metal, its principle is to discharge at the moment, a sharp change of arc temperature and with pressure, so that the metal material of the point immediately melted, gasification, splashed liquid and explosive, condensed into solid particles is the working fluid. At this time, the metal surface is etched into a pit, so EDM can be easily processed on any metal workpiece, so it is convenient and quick.

Q: What bit is better for drilling 304 stainless steel?: Recommend two bit, a cobalt high speed steel drill, a kind of high performance cemented carbide drill bit, cobalt high speed steel prices, but the short life, low efficiency, poor accuracy, need to pre order centering drill better; hard alloy drill special stainless steel price expensive, but also life a lot of high efficiency, high precision of hole size, also, finish too high a lot, without centering drilling machining, can be directly used cobalt alloy drill drilling; compare the two contrast, characteristics of stainless steel is high toughness, easy to stick a knife. So the drill head hardness is high, the main component is hard alloy tungsten carbide, cobalt, hardness is generally high in HRC90 degrees, cutting fluid with emulsion concentration. The cutting speed is as low as possible, because the 304 stainless steel easy drilling so as to reduce the temperature for heating chip.

Q: M6 threads need to drill much bottom?: M6 need to drill 4.8mm hole thread. Calculation method:Generally, the diameter of the Gong bolt multiplied by 0.86 is the diameter of the hole to be drilled.M6 thread refers to the nominal diameter of 6mm coarse teeth, ordinary thread.

Q: 14 what big expansion wire does the drill use?: Sleeve type, is ordinary, cheap price, M10 D12, M12 D14, M16 D20, the biggest drawback is to put the bolt can be placed in fixed equipment, if equipment base fixed hole heavy equipment, then put the bolts in any case not put in equipment.

Q: How big is the drill bit for the 7mm hole?: If 7 holes are machined, 6.9 bit holes are used, and 7 reaming holes are used to obtain the qualified holes

Q: What's the difference between an impact drill and an ordinary electric drill?: An electric drill is a drilling machine that uses electricity as power. Is the power tools in the conventional products, but also the largest demand for power tools products. The electric drill is only available in the form of rotation, especially for drilling on materials that require little force, such as cork, metal, brick, tile, etc.. Just rely on the electric motor drives the drive gear to increase the strength of the drill bit rotation, do scraping in metal, wood and other forms of perforated material.

Q: What are the main points of drill grinding?: The edge of the drill must swing up and down, and the tail of the drill can not stand up. This is a standard bit grinding action. The main cutting edge swings up and down on the grinding wheel, that is, the hand holding the front of the drill must swing the drill bit up and down evenly on the grinding wheel surface. The handle of the hand can not swing, but also to prevent the rear handle to go up, that is, the tail of the drill can not be high above the horizontal center line of the grinding wheel, otherwise it will make the edge of the grinding blunt, unable to cut. This is the most crucial step, the drill is worn well and bad, there is a lot to do with it. At about the same time, start at the edge of the blade and rub it gently in the back, so that the back of the blade is more polished.