Why Cheap Drill Bits Burn Out - And How to Choose the Right One
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If your drill bits keep turning blue, smoking, or snapping, the problem isn’t your drill - it’s the bit.
Why Cheap Drill Bits Fail
Cheap drill bits are:
- Soft steel
- Poorly ground
- Off-center
- Too blunt
This causes:
- Overheating
- Wobbling
- Broken tips
- Slow drilling
Which leads to scraping instead of cutting.
What Good Drill Bits Do
Professional drill bits:
- Cut clean
- Produce chips
- Stay cool
- Stay sharp
- Drill straight
We stock three levels of DISA drill bit technology:
- Standard HSS
- Edge-ground HSS
- Fully ground HSS (135° industrial)
DISA’s Fully Ground HSS-G drill bits are:
- DIN-certified
- 135° split-point
- Designed for steel, stainless, aluminium & more
Which Drill Bit Should You Use?
Material |
Bit Type |
| Wood | Standard HSS |
| Mild Steel | Edge-ground HSS |
| Stainless Steel | Fully ground HSS-G |
| Aluminium | HSS with lubricant |
| Brick | Masonry bit (not HSS) |
Pro Tip
Let the bit do the work.
Always use cutting fluid when drilling metal - it doubles bit life.
If you push hard, you burn the edge and destroy it.