The Best Drill Bits for Home and Work
Electric drills get the heavy work done
Electric drills require a constant supply of electricity in order to perform, which can be one of the drawbacks of an electrically powered tool. On a positive note – when using an electric drill, you never have to worry about the battery running out midway through your project. Typically, an electric drill offers more power and torque than its cordless counterpart.
Deciding on whether your should buy an electric drill or cordless drill will depend largely on where your job is located and how much power is necessary to complete the job. Masonry and stone work generally require a corded drill.
Concrete drilling is made easier by using a hammer drill. Hammer drills turn just a standard drill while providing a hammering action.
Many do-it-yourselfers prefer the convenience of not being plugged into an outlet. The cord of a power drill limits the distance between the work area and the outlet.
Most quality cordless drills will get the job done, but you have to make sure you always charge the battery. It is not uncommon for the drill to fade and die before you are finished drilling. To combat this issue, choose a cordless drill with an extra battery.
Cordless drills can tackle any light or medium job like wood. Standard cordless drills will usually fall short on the heavy duty jobs. Some manufactures make a heavy duty cordless drill, but overall a corded drill is still best for lengthy heavy duty projects.
Types of Drill Bits
Both corded and cordless drills come with a starter kit filled with a variety of basic drill bits. These are typically the drill bits necessary to drill a small hole in wood or other fairly soft substrate. But, there are so many more jobs than drilling a hole in wood that require a special bit. There are a ton of drill bits available – some are useful for only one particular project while others have more than one use.
- Carbide-Tipped Drill Bits – Carbide-tipped drill bits are necessary when drilling through stone, brick, concrete, stucco, ceramic tile, glass or plaster. The carbide-tipped drill will not dull as easily as a standard bit from coming in contact with highly abrasive masonry materials.
- Spade Bit – A spade bit has a pointed middle piece with a flat metal piece. Spade bits are capable of drilling various larger size holes. Spade bits are used during the installation of locks or upright stair posts.
- Hole Saw – A hole saw is a drill attachment that is capable of cutting large round holes through a variety of surfaces. A hole is necessary during the installation of a door knob on a slab door.
- Rotary Rasp – Basically a rough, round file used to rough out a shape in wood. After roughing out the shape, the wood is finish with sandpaper. Very useful when cutting decorative detail in moldings or picture frames
- Hex Driver Bit – Perfect for sinking hex screws which are found on many household appliances.
- Auger Bit – Auger bits are used for drilling wider holes in the substrate. The specially designed bit forces wood back out of the entry hole.
- Step Drill Bit – The step drill bit has a cone shape tip and is perfect for drilling through thin materials including sheet metal and plastic.
- Screwdriver Bit – Screwdriver bits come in a variety of sizes and types including Phillip’s head and flat blade. Very useful for sinking screws.
- Nut Driver – Nut driver bits allow you to quickly and easily tighten nuts.
How To Drill Metal
- Work some plumber’s putty until it is soft and pliable.
- Roll the putty between your palms to form a thick rope.
- Encircle the point at which you are drilling with the rope and press it into place to form a well.
- Fill the well with machine oil.
- Drill the metal with a titanium or carbide bit through the machine oil.
How to Drill Ceramic Tile
- Find a basin that will accommodate the size of the ceramic tile.
- Mark the tile with a grease pencil, designating the point at which the hole is necessary.
- Place a piece of wood in the basin.
- Place the tile on top of the wood.
- Add cool water until you just cover the tile.
- Drill trough the tile with a carbide-tipped bit.
- If you do not have a basin that will accommodate the tile, lay a hose next to the drill surface and allow water to gently run across the face of the tile while drilling.
How to Drill Through Glass
- Tape a thick sheet of corrugated cardboard that is slightly larger than the glass piece to the back of the glass.
- Equip the drill with a spear point carbide-tipped bit.
- Drill steadily into the glass.
How to Control the Depth of the Hole
- Attach a depth guide to the drill.
- Set the guide to the proper depth.
- Drill into the substrate and the depth guide will stop the bit from going farther than your prescribed depth.
If you aren’t already tired of throwing away and replacing worn dull drill bits you will be. Stop wasting money – sharpen the drill bits. There are plenty of drill bit sharpening tools on Amazon that will keep your drill bits perfectly sharp.
Or simply use a file to sharpen your drill bits. Also, add a dab of oil to the bit after sharpening so that the bit doesn’t rust. Just add a drop or two to a rag and wipe the bit down.
- Clamp smaller items to a piece of plywood to stop the piece from moving or walking while drilling.
- Use a piece of wood behind the wood you are drilling. Drill through the wood and into the backer wood to prevent a raggedy exit hole.
- Use a corded drill when working in either very hot or very cold conditions as the extreme temperatures will overly tax the battery thereby shortening the battery life.