Wednesday 27 January 2016

Carbide Drill Bits for Boring hardened Metals with Precision

Whenever you find that your home’s arsenal needs a tool for anchoring into cured concrete or in some other hardened metals, then you should buy a right drill bit for boring and reaming job. Here, you need a drilling tool which can be used on hardened materials. Carbide drill bit can make it possible, which is best suitable for high-production applications, and is widely used by locksmiths, auto mechanics or any operators for drilling into hardened materials.

The carbide itself has the quality of dissipating the heat, which makes it prone to damage. So, the drills made from this material can perform brilliantly on hardened steel. However, when you begin the drilling process, you should keep the speed of spindle slow. At a moderate pressure, this drill can bore accurate holes. However, you can cut the metals at high speed as well. It can also extend the life of the tool with its characteristic of hardness. However, it is rigid, but brittle also which can make it different in its own way.

This bit can be used where accuracy and rigidity matters. To maintain the lubricity and keep the bit cool, you should use some oil while drilling through. It is really a tough job finding the hardened steel. Bolts, screws, freeze plugs, bearing races, safes, shafts, gears, etc. are a few hardened steel.

It is brittle, hence generally used on the tip of the bit. You can use it in various production level applications. However, they are expensive, but you can make it your favorite drilling tool because of its long lifespan and durability. Its heat resistance capability makes it durable enough for enduring the high temperature, which in turn extends the life of the bit. Thus, the operational and maintenance cost becomes low. Thus, you can choose carbide tipped bit for a feasible solution, despite its expensive price tag.

The machine shops are flooded with several types of drill bits. You should pick the right type of bit for a right type of hole with proper finishing and accuracy. You can now shop them online as well at more reasonable rates. But, do a proper check for finding the reliability of stores.  

Sunday 3 January 2016

How Step Drill can bore a precise hole?

Every type of drilling work can be done efficiently using the right tool. Well, picking the best appropriate tool is a daunting task until you are unfamiliar from the characteristic of the drill bits. Plenty of bits are available in machine shops which are intended for various drilling purposes. Some of them are used to bore holes in concrete or brick walls while some are designed for drilling in wooden surfaces, named masonry and auger bits respectively.

Plenty of others are also out there. Let’s have an introductory discussion about the step drill. This bit is used on metal surfaces and you need to apply desired pressure and can start drilling at a slower speed for an accurate hole. Using this bit, you can bore various sizes of holes. However, you cannot bore a deeper hole than the 1/4th of an inch through this thin bit. So, you can only use it on thin metal surfaces, not on hard metals.

Step Drill
This drill rotates clockwise in metal sheets step by step. Each step enlarges the previous hole while the smallest bit doesn’t require any pilot drill to start the drilling process. On the other side, the larger bits always require a pre-drilled hole. There is a central punch to decide at which position, the hole will be. This central punch helps in creating a pilot hole. And, a pilot hole is enough to describe the precision and accuracy in drilling.

Well, you should always drill at a very slow speed with the right amount of pressure and torque. If you keep the speed faster, it will generate great heat on the metal surface which can damage the bit. Keep the speed slow and pressure high to initiate the hole. After drilling the pilot hole, now you can release some pressure for further drilling.

Let’s understand its design which has several steps of different diameter, from the tip to its ground level, each for creating different size of holes. Thus, it is named so and can be used for various purposes and for various applications, especially for countersink and counterbore. So, don’t forget to keep a step bit in your tool box.