Release time：2020-01-16 18:44 Browse：
| Problem | Cause | Explanation |
|---|---|---|
| ❌ Can’t drill through | Drill point too small (#1, #2, or #3) for the steel thickness | The screw is designed for thin steel or soft materials, not heavy steel |
| ❌ Drill point burns out | Too much pressure or high speed (heat buildup) | Causes the point to lose hardness, especially without lubrication |
| ❌ Drill point breaks/snaps | Poor alignment or side load | When the screw is driven at an angle or against resistance |
| ❌ Material too hard | Steel too thick or hardened | Drill point can't handle it, especially if screw is low quality |
| ❌ Low-quality screw | Bad heat treatment or cheap metal | Drill point isn't strong enough to perform as expected |
✅ Choose the Right Drill Point Size
Use #5 drill point for thick steel (up to 12mm / 1/2")
Use #3 for thin/medium steel (3–5mm)
Match screw to actual steel thickness
✅ Use High-Quality Screws
Prefer screws with proper heat treatment and hardness (HRC 52–56)
Choose screws with carbide or enhanced drill tips if possible
✅ Drive at the Right Speed
For steel, use slow to medium speed (around 1500–2500 RPM)
Avoid excessive pressure, which causes overheating
✅ Pre-drill or pilot holes (if needed)
For ultra-hard or layered steel, sometimes pre-drilling helps
Also helps with very long screws to prevent wandering
✅ Use the Correct Tool
Use a cordless or electric impact driver with steady pressure
Keep the screw perpendicular to the surface
If you're using a 6.3mm × 400mm long screw with a #3 drill point to penetrate 8mm steel — it will likely fail. You should switch to a #5 drill point and ensure the screw has good tip hardness.
