To keep a drill bit from wandering when drilling in metal, put the point of a center punch or nail set on the spot you want the hole, then tap it with a hammer to make a small dent in the metal.
You can use a center punch if accuracy is critical, as starting a bit can allow a bit of drift before the bit bites. Step sizes up until the hole size you need is reached. Keep the drill square to the surface of the door to make sure your hole is usable when you're done.
To keep a drill bit from wandering when drilling in metal, put the point of a center punch or nail set on the spot you want the hole, then tap it with a hammer to make a small dent in the metal. Chuck the drill bit in the drill, place the bit on the dent, and drill the hole. Watch this video to find out more.
Stick-slip is caused mainly by rotational friction induced along the drillstring, from the drill bit cutting the rock formation to the bottom hole assembly and drill pipe that contact the well bore.
If your bit isn't secure in the drill, examine the chuck. Normal wear and tear can compromise the chuck's ability to hold the drill bit. Dropping the drill can also damage the chuck and make it necessary for you to get a replacement. A keyed chuck on a drill uses a key to loosen or tighten the grip on the bit.
You can try beginning your hole in non-hammer drilling mode to stop your drill from skipping across the surface. Place your drill bit in the right location, and with pressure on the drill, start drilling slowly.
Faulty equipment and warped or bent drills are likely to wander and may also break. An inaccurate starting position will make drill wander inevitable. Using the wrong feed pressure and speed, or inconsistent drilling, can make drill wander more likely.
Utilise a Centre Punch: Using a centre punch will create a handy indentation, thus giving you an easy target once you commence drilling. Use a Drill Stand if Necessary: Using a stand can help you to guide your tool into the hard materials such as brick or mortar, whilst creating straight holes absent slipping.
Use thread locker glue
If you're putting together your garage storage yourself, then you must absolutely keep thread locker glue on hand to apply to your screws before fastening them.
One of the best, easiest and quickest clamping holders is a simple wooden hand-screw clamp ... I also like quick release clamps, but the wooden hand-screw is best as it can be easily clamped to the drill press table as well. Another huge safety device for drill presses are fence systems.
Drill chucks are devices used to hold a drill or other cutting tools on a spindle. They are available in keyed, keyless or hybrid systems, allowing for quick changes of a drill bit. Diagram of a Drill Chuck. Key Styles: Keyed chucks are engineered to either loosen or tighten the hold on a tool by using a key.