Multisize Straight Shank Twist Drill Bits For Drilling Metal Iron and Aluminum Drill Bit

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Multisize Straight Shank Twist Drill Bits For Drilling Metal Iron and Aluminum Drill Bit

Q: What drills are used in stainless steel drilling?: Drilling drills are often used on stainless steel workpieces. Hardened carbide can be made from carbide drills. If conditions permit, we can use super hard high speed steel or ultra-fine Grain Cemented Carbide bit. When drilling, the torque and axial force are large, the chip is easy to bond, difficult to break, and the chip removal is difficult. The work hardening is intensified, the corner of the drill is easy to wear, the drill bit rigidity is poor, and vibration is easy to occur. So the drill grinding chip split groove, grinding chisel to reduce axial force, grinding double angle to improve the radiating conditions.

Q: Is the drill fast to feed, easy to break, or slow to feed, easy to break?: The feed is fast, the drill bit is still constant, the feed is fast, the amount of cutting per tooth is large, the cutting force is large, and when it exceeds the strength limit of the drill, the drill will break. Feed too slowly is easy to wear drill bit, because the feed is too slow, cutting edge cutting more times, so easy to wear.

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 drills do we use to drill jade?: Process for drilling holes on the jade carving is the use of drilling needle method, with a needle, rotated on the jade carving, jade sand "," to grind a shallow pit on the surface, then the pit, until the jade material wear. The drilling period "jade sand" has been in the pit with rotating rubbing hole wall, so the upper hole than the lower part to bear "jade sand" friction, so that by this method to hit the hole, the hole is small in shape.

Q: Is it OK to drill holes on tiles with an ordinary bit? Will the tiles crack?: But my home is cheap tiles, give you a weapon:I use the impact hammer drill, not too big eyes when drilling, I only through the 6-8 (i.e. 6-8mm diameter) of the eye;

Q: How do you determine the speed of the drill? Is there any standard?: The diameter of 2mm twenty thousand to 40mm 32 is mainly to see the diameter of iron chip is not sent out only primary coke is not a piece of burning speed is too high to slow down a block that feed enough that need grinding head shaking feed you attached to a long amount of iron is the thickness of it feed processing when you need cooling water;

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: Can HSS drill bits be drilled into stainless steel?: Yes, but it's best to have cobalt high-speed steel bit, but it's better to use a carbide drill. High efficiency and cost performance. We can make stainless steel special drill.

Q: What drill is used for punching aluminum parts?: Aluminum alloy, copper, stainless steel, these materials are not high hardness, aluminum alloy, copper soft, frequent drilling process, it is easy to have cutting, there will be a lot of burrs, aluminum alloy special drill.

Q: Grinding the drill bit, how can grinding, and the method of quick crash is what ah?: By the back edge grinding behind. This is the slow grinding of the entire flank from the edge of the bit. It is easy to dissipate heat and grind. Based on the stability of the consolidation of one or two of the formula, the drill can be gently contact for a relatively small amount of grinding wheel, grinding, grinding to observe the uniformity of the spark, to adjust the size of the pressure, and bit cooling. When the cooling start again after grinding, to continue to set the formula to the one or two position, it is often in the beginning is not easy to grasp, often can't help to correct change their positions.

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