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 to distinguish between electric hammer drill bit used

Use the hammer drill shank is square, drill shank is round. The hardware store that buys electric tools will find out in comparison.

Q:What drills should be used to drill holes with diameter 5mm and depth 65mm? Urgent! Thank you!

You don't know what material you need to drill, what is the material, or how hard it is,Ordinary material on the ordinary line, and if the material hardness, then you have to use M35 cobalt or alloy drill.

Q:Good or good tungsten cobalt steel drill bit.

Tungsten bit high hardness, wear resistance. Suitable for occasions with high hardness, uniform material and no vibration (such as steel and hardened steel). That's the principle.

Q:How can we change an ordinary drill bit into stainless steel?

I've never heard of it, but it seems to be a high-speed steel drill, and it's not expensive. Why do you charge for that?

Q:What is the four hole five hole hammer

Actually, what's the difference?:1: four pit is now the longest on the market with better match. Five of the pits will not fit the drill bit.2: the five pit is usually large with a hammer, more than 38, because the big hammer torque, relatively the five pit stress structure more reasonable.

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: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.

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.

Q:Why do you always burn drills?

If it is ordinary A3 steel, then the domestic drill on the line, online search can buy, if at any cost, material and hard, import it.