TCT hole saw(Thick metal) HTTS-B D.O.C. 1

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HTTS-B

D.O.C. 1”

◎ Made of high quality solide carbide tips , reduce the damage of tips , increase the endurance

◎ Assembled with high quality center drill and spring

◎ Maxium cutting depth of 15mm on solid plate with pistol drill , and 25mm on solid plate with magnetic drills

◎ Shank diameter 10mm for hole saw Φ16mm~34mm , and Shank diameter 13mm for hole saw Φ35mm~100mm.

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Q:Tap with 5 taps. How many drills are drilled?: Calculation formula:The workpiece is a brittle material (cast iron, bronze, etc.): the bore diameter is D=d- (1.04 to 1.08) tThe workpiece is made of plastic material (steel, copper, etc.): bore diameter is D=d-tD: nominal diameter of thread, t: pitch, unit: mm

Q:How big expansion screw does the 6mm bit have?: Expansion screw generally refers to the metal expansion screws, expansion screws fixed, but the use of wedge slope to promote expansion, friction, grip force, to achieve fixed effect. One end of the screw is threaded, and the other has taper. Outside the bread (some tin pipe), iron cylinder (steel tube) has several half incision, put them together into the wall lay the hole, then the lock nut, the nut screw pull, pull cylinder taper iron, iron cylinder is open up, so tightly fixed on the wall, generally used for protection bar, awning, air conditioning and other fastening in the cement, bricks and other materials. But its fixed is not very reliable, if the load has a larger vibration, may be loose, so it is not recommended for the installation of ceiling fans.

Q:What are the differences between a twist drill and a construction drill? Where are they used?: Impact drills operate by rotating and impacting. A single shock is very slight, but a shock frequency of more than 40000 minutes per minute can produce continuous force. Used of natural stones or concrete. When the impact drill works, the drill chuck is provided with an adjusting knob, which can be adjusted in two ways: an ordinary hand drill and an impact drill. But the impact of drilling is the use of internal gear to achieve mutual beat of impact, but the impact is far less than the hammer. It is not suitable for drilling reinforced concrete.

Q:Angle action and characteristics of standard twist drill: The main deviation angle is RM, and the main angle is the angle between the tangent of the main cutting edge and the feed direction of the m. The base surface of the twist drill is the plane at which the main cutting edge is selected, including the axis of the drill bit. The bit is not the main cutting edge through the axis line, so each point on the cutting edge of different base, the main angle points are also different. When the angle of grinding, the main angle can be determined. The main deflection angle and the vertex angle are two different concepts.

Q:Is it OK to drill holes on tiles with an ordinary bit? Will the tiles crack?: An electric drill must, of course, be of good stability. It is a small vibrating one, and the stability of the new one is better than that of the old one.When you drill, take it easy and slow down.The position is not a problem. I've drilled both the middle and the edge. Please be sure to be slow and slow!

Q:What are the weight specifications of the drill pile when the bridge pile foundation is constructed?: Impact drilling in two main forms, one for earth or soft rock using tubular hammer, one for hard rock is solid hammer, the general hammer is about 4-5t, if you want to increase, you can hammer on the steel bar plus counterweight.

Q:What is the material composition of the electric hammer drill?: Electric hammer drill, mainly adopts the high quality alloy steel, the cutter head adopts Y hard alloy welded.

Q:The difference between left and right drills used to drill holes: There are very few places to use left-hand drills:1, the modular machine tool porous drilling gearbox design, due to local restrictions can not change the direction of the wheel, only left-handed drill.2, when the attack left hand thread need to drill hole, plane moment is easily broken by alternating reverse gear, left-hand drill.3, drilling thin-walled parts will appear spiral line, can be left hand bit repair.4, some of the spindle is subject to restrictions, can not use the right-hand bit.

Q:What drills are used in tapping 304 stainless steel?: Now on the market is generally a bit alloy steel material whole bit, although the materials are the same, but due to the processing technology, various brands of product quality disparity. Imported and domestic alloy drills are also very different. Imported alloy bit usually adopts VHM micro grain hard alloy (ISO K40), the type of ultrafine particles (0.6 m) in the application of high performance drill and ordinary milling machine, the hardness and toughness of the ideal together. Take high quality alloy bit surface coating, such as chromium aluminum nitride (AlCrN) coating, the coating layer of coating, the thickness of 4 m, the micro hardness is up to 3200HV, the friction coefficient of 0.35, thermal stability up to 1100 degrees celsius. After coating, the drill color is bluish gray. After coating, the alloy drill can process low alloy steel and high strength steel. High steel can reach 54HRC.

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

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