Which drill bit

Drill bit type. Tungsten carbide. Concrete, Reinforced concrete, Concrete blocks, Stone. Smooth and hexagonal shank. Rolled steel occasional use or hardened steel regular use. Non-ferrous metals. Grinding drill bit. Ferrous and non-ferrous metals, Stainless steel etc. Interchangeable inserts. Ferrous and non-ferrous metals. Chamfering drill bit. Chamfering countersink. Smooth shank. Conical head. Which type of drill bit to use for which material?

The choice of drill bit type depends on what the material is you want to drill. There are three kinds of drill bits:.

These include aluminum, copper, brass, zinc, iron and non-alloy steel. For walls made from solid brick e. If your walls are made from perforated brick similar to solid brick, but with evenly spaced cavities , you should try to use anchors that bridge the cavities or fill them in. Anchors with grout are ideal, as are plastic anchors that expand. For walls made from plasterboard, also known as drywall, you can use a special spiral-shaped drywall anchor made from metal or plastic.

Unlike standard anchors, this does not expand. You should also use hollow wall anchors made from plastic or metal. For the best results with drywalls, you should use either a drywall anchor or a special hollow wall anchor made from plastic and metal.

This is suitable for use with cavities of different sizes and holds securely. A universal anchor is also an option, as it expands behind panels and cavities. The best drill bits and wall anchors for wood, metal and other materials DIY Knowledge. Choosing the right drill bit.

Determine the depth of the hole. Which drill bit goes with which tool? What is the right kind of wall anchor for my project? Small drill bit diameter: high speed Large drill bit diameter: low speed Soft material: high speed Hard material: low speed The drill speed may need to be adjusted depending on the combination of material and drill bit diameter. There are four main types of drill shanks, each of which is suitable for specific tools: A round shank or cylindrical shank fits in almost all drills and impact drills.

A hexagonal shank. Drill bits with this shank fit better in drills with three-jaw chucks. The hex shank is a special type of this shank and has an additional groove.

As well as three-jaw chucks, it fits in SDS Quick and hex shank chucks. As you might imagine, drilling holes around your home without the knowledge or tools to do it properly can get messy pretty quickly. Most cordless drills come with a few basic drill bits anyway, but for some DIY jobs, you might need something extra.

Twist bits are the most common kind of drill bit. Most standard drills will usually come with a few differently-sized twist drill bits. Steel bits are the softest, cheapest bits you can find.

Blunt bits can snag as they bore through materials, leading to ragged holes and splits. HSS bits are a little tougher and can drill through harder materials quicker and without blunting. The titanium makes the bit much harder and is slightly self-lubricating, which makes it perfect for drilling hard metals. Masonry bits look like larger twist drills with a slightly tighter corkscrew shape. You can identify them thanks to their wide arrow-shaped heads. You can use them on brickwork, stone, breeze blocks, and other hard stone surfaces.

Perhaps you want to put a cable-tidy hole in the back of a desk, or maybe you need a hole big enough to feed a pipe through. There are many different drill bits which are specially designed to bore wide, circular holes in material, and there are a few differences between them all. Wood spade bits are also called paddle bits because of their wide, flat shape.