Although the drill is worn out, it can be repaired by a drill bit grinder. However, in ordinary use, different drill bits also have many tips. If you do not know how to use the drill bits, it will cause serious damage to the drill bit. It is impossible to use the drill bit grinding machine for repair, and the cost will also increase.
There are some pointers that, when followed, will retain the life of the above drill types.
- Hard materials need slow drilling speeds, and soft materials need faster drilling speeds. And as the hole deepens, the speed decreases. For the precise recommended drilling speed, the HSS drill can see the following formula.
- You can drill holes first to allow for more accurate drilling.
- Always make sure the drill is sharp to ensure less load on the power tool and better cutting effect.
- If you plan to drill down to a piece of wood, use a wooden pad at the back of the job to prevent the material from breaking.
- To achieve better drilling results, the cutting fluid is applied to the bit when drilling metal (except brass and iron).
- Large bit will transfer a lot of reaction force to the drill bit, so be ready to stick with it.
- All drill bits should be regularly removed from their flutes and airflow should be added around the drill to cool it.
- Always apply pressure on a straight line with a drill. You should have enough to keep the bit together, but not too much, the tool’s motor gear or the bit deflected.
- To prevent material breakouts, reduce the pressure you apply and get the drill through the last part of the hole.
- Be sure to let the drill cool naturally. Don’t force them to cool in water (or any other liquid).