Q:Electric hammer drill killed what should take down

Electric hammer drill, is the "two function drill" and "hammer" handheld electric tool, "rotary cutting drill", with the impact of the impact mechanism of driving impact drill bit, drill driven in rotation at the same time, there is a direction perpendicular to the rotation of the rotary drill reciprocating hammer exercise. For concrete, brick, tile, marble and other materials drilling. "Hammer" to drive the impact force of drill rod, used for concrete, bricks and other materials on the slotting, holes or broken concrete etc..

Q:What method should we pay attention to when drilling small holes and long holes in plain drills?

Coolant added a lot, although the cooling effect is good, but it will make drilling cuttings are not easy to row out. Just use a brush with a coolant, and when the drill is lifting the cuttings, brush some of the coolant on the drill. Each time the drill is drilled down, do not enter too much at once. Especially in the hole drilling more and more deep, but also frequently drill bits, cleaning up drilling chip.

Q:How do you drill a bit?

A bit, including a cutter rod, a cutter rod tip, tip two is located in a main plane (C - C) on the cutting insert (5, 5 '), the cutting blades (5, 5') have in common second planes (E - E). The orientation of the short cutting edge center. The blade forms a point like center, the cutting edge is used to enter the workpiece, and thereby the bit is aligned. Two chip grooves (6, 6 ') are arranged on the cutter bar, and the chip removing slots (6, 6') extend from the tip to the end. In any section along the bar, the flutes are located are diametrically opposed to each other's position in the flat tube, flat tube and two common edge edge in the pipe on both sides of the belt plane (F F) 90 degrees extension, wherein the knife rod has a maximum in the rigid plane. The orientation of the second plane (E E) of the center cutting edge is approximately 90 degrees with respect to the main rigid direction (F F) of the blade plane or the bottom of the cutter bar.

Q:How about the speed of the drill bit and the feed of the cutter in the machining center?

1, if I first drill with D13 bit (S600, F80, Q5), and the rest of all milling cutter hole2, casting and steel parts almost turn, the speed can be faster. After 28 of the hole points, use 28 bit S300, F50, Q3. directly3, 35r6 direct spiral down, layer below 0.5-0.8, S1500, F2000-3000

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:Drills, drills, heating drills, will they be annealed?

Drilling, drilling, heating, if the temperature is too high, will lead to accelerated drilling wear, and even annealing.The cutting heat in the cutting process due to friction deformation and cutting material separation and rub the cut material between, so drilling after jobs have hot feeling, but not as long as the cutting drill out of the blue or purple, generally does not cause a bit of annealing.

Q:Good or good tungsten cobalt steel drill bit.

They are tungsten cobalt drills, which are commonly used in machining. Tungsten, cobalt and titanium drills are found in hard materials with Rockwell hardness of more than HRC32.

Q:What is a water bit?

It is mainly a cement made to punch in front of it is made of carborundum,

Q:How do the new pros and cons drill the drill bit without the key?

This is the hand chuck chuck, is divided into two parts, the front end is used for elastic, rear end is fixed, you want to unload the drill, left to right back to the front to turn in the opposite direction can be loose, Anhui, Bozhou, great electrical firm opened, welcome patronage. Address is: Wanfu market, B building, No. 76-77, which is the general agent of broad brand. Cost-effective

Q:What's the difference between a UC drill and an ST bit?

UC bit is used for high quality drilling, drilling temperature is low, less nail head, slag, broken rate phenomenon. Because of its low loss ratio, the drilling torque resistance is reduced, which is beneficial to micro drilling and more than 6 layers of PCB boards.