Adam has shared a series of tips for drilling in our Best Advice section. The Bunnings Workshop community team has also shared these useful guides as part of our tools series:

Very short bits designed specifically for use when pre-drilling metal for riveting. Their diameters are matched to rivet sizes. Some are also double ended.

The Bunnings Workshop community is here to assist if you need a hand in choosing the right drill bit for your project. Don't hesitate to hit the Start a discussion button and let us know your needs.

The feed rate is measured in inches per minute (IPM) and is the result of ... UNIT OF MEASUREMENT. HP. CUTTING POWER INPUT horsepower. SFM. CUTTING SPEED.

A selection of Diamond Plated Drill Bits Jobber Length 1/8, 1/4,3/8,7/16,1/2,5/8,3/4,1.

These can easily be drilled with HSS bits. However, it is advisable to run your drill at a lower speed. A fast drill can heat up and melt the material, resulting in swarf melting and sticking onto the material you are trying to drill into.

If you only need to drill about 30mm into a material, then use a bit that has extra fluted length. It is good practice to drill holes a little deeper than needed, especially in masonry. In these situations, drill swarf can fill the hole and reduce its depth.

Ideally, the length of the drill bit should be measured against the length of its fluted section, not including the straight shank section at its base. This helps to avoid the risk of your chuck spinning against and damaging the face side of the material.

We recommend using a specialised diamond core bit or glass and tile spade bit for these. These bits must be kept wet while drilling. You can also use a fresh and sharp standard masonry bit. Keep area wet while drilling with diamond bits

Roughing. Cutting tools for CNC roughing applications. DATRON roughing bits are designed for high-speed material removal and efficiently remove material to ...

These bits look more like a router bit than a drill bit. They are designed for creating holes with flat bottoms. For example, when fitting dowels in furniture or concealed hinges in cabinetry.

These bits have a sharp position tip and raised cutting spurs on the outside edge of the flutes. They are designed for clean cutting when making furniture, or other similar projects.

These are used when a long hole is needed to be drilled through timber. For example, when you may need to run cables, pipes or cyclone rods through framing, floorboards and bearers or joists.

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This is when you need to drill holes smaller than your fastener. To use our M12 example again, if you were using a large M12 coach-screw, then you would drill a pilot hole of 10mm to 10.5mm.

There may be times where you have to drill through multiple layers of materials. For example when wall framing, you may have to drill through tile and compressed cement sheets. We recommend using a multi-material or construction bit. These are designed for drilling through a range of tile, masonry, timber and metal materials.

It is also important to know the hole diameter you require for your project. This determines the type and size of bit you will need.

Machined acrylic, or PMMA, parts exhibit good optical properties, UV stability, high gloss, and scratch resistance.

This hole is the correct size for your fastener to snuggly pass through. For example, if you are using M12 bolts, you ideally want a hole slightly larger than the M12 (12mm) bolt to avoid having to hammer it through. A 12.5mm or 13mm bit is ideal.

These are used mainly to drill perfectly round holes. A cylindrical saw blade fits into a mount with a drill bit in the centre. It positions the saw and guides it through.Hole saw

Designed specifically for use with impact drivers, these are designed to withstand percussive force emitting from the drivers.

Choosing the right drill bit plays a huge role in making your drilling project is a success. It can help you use your power drill efficiently and safely.

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In situations where you need to drill through your material, the bit should be at least 10mm to 20mm longer than the material thickness. This allows for the bit to cut a clear hole out the other side.

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However, there are many types of drill bits available, and it can be tricky to work out which one you need for your project.

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Jun 24, 2021 — Cutting speed represents how fast the metal is removed from the workpiece. Cutting feed focuses on how far the cutting spindle travels across ...

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These come in a variety of forms. The basic ones are mainly used to drill wide holes for screws that sit flush with the surface. Others have an integrated pilot drill so that you can both pre-drill and counter sink.

Filters (1 applied) Clear all · Trend SET/SS8X1/4TC 1/4" Shank Router Cutter Starter Set 12 Pcs (85954) · Bosch 1/4" Shank Router Bit Set 15 Pcs (300KY).

These are designed for clearing short holes through timber quickly. Available mostly in larger diameters, they are used for running holes through framing for plumbing and electrical cables. Both bits have a sharp positioning and starter tips with the larger cutting section behind. Spade bit

These bits have tiered cutting stages. They are designed for cutting accurately sized holes through materials such as thin sheet metal, plastic, aluminium and fibreglass.

A masonry bit should be used for these materials. In most cases, we recommend using a hammer drill on hammer setting to aid the drilling process. Note that if drilling tiles, hammer setting might crack them. For very dense igneous rocks like granite or basalt, you may need to use specialised drill bits.

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