Drill Bits

by Dhiraj Bandurkar

Drill bits, the most important part of any drill machine is used to bore cylindrical holes in different materials like metal, wood, plastics, etc. As per your requirement you can make the choice of drill bits If you are looking for a few quick useful tools a set of steel twisted bits and a few masonry bits would be enough but if you are working on the floor then you would require bits which are larger and or designed for a specific purpose/material.

We come across many types of drill bits designed for a specific purpose. One such drill bits is the steel twist bits. The twist bits can be used for wood, plastic and similar material and are also useful while drilling metal sheets. The twist steel bits are mostly made up of either High Speed Steel or Carbon Steel. Both the drill bits serve a different purpose like the carbon steel drill bit is used for drilling wood and not metal. The steel twisted bits coated with Titanium Nitride (TiN) are also available. These drill bits exhibits a typical gold like color. This coating provides the drill bit more hardness and also a self-lubricating property. This bit should only be used for drilling metal and not any other material. As these bits are thin and brittle Special care should be taken when using the smallest. Always hold the drill square to the work and apply only light pressure when drilling.

You can use a drill sharpener, a grindstone jig or an oilstone to do this for sharpening the blades. Sharpening the blades or drilling areas regularly keeps the bits in shape and hence is cost effective. But while sharpening the twist drill bits Special care should be taken as titanium nitride coating can be destroyed. By forming a correct angle at the tip while drilling you can extend the life of the of your drill bit.

There are a variety of drill bits for different purposes. Some of them we can enlist here to give you a broad idea. The types of drill bits are:

Metal Drills
Ejector Drill
Core drill
Left-hand bit
Countersink bit
Indexable drill
Spade Drill
Trepan
Twist drill
Gun drill
Center drill

Wood Drills
Lip and spur drill
Spade bit
Brace drill bit
Auger bit
Gimlet bit
Step bit
Forstner bit
Hinge sinker bit
Adjustable Wood Bit

Other Materials
Diamond core bit
Masonry drill
Hole saw
PCB through-hole drill
Installer bit

Simple question about pcs?

I have this specs.

Quad Core
P5N32-E SLI PLUS - motherboard
768mb 8800 GTX OC2
8GB Ram

If i use a 32-bit Vista will that be a problem?

Any 32 bit OS only supports 4 GBs of ram. Use 64bit Vista if you wanna run 8GBs. Also, regardless of what you do, only use 2 GBs of ram to install Vista then add the extra ram after the install because you cant put Vista in with more than 3GBs of ram installed. you'll get the good old BSOD if you have over 3GBs in during install.

http://support.microsoft.com/kb/929777/en-us

i7 920 GTX295 Quad SLI Crysis at 16xAA Very High, DX10 64-bit Benchmark

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