Selecting a Magnetic Drill
Match the drill to cutter diameter, cutting depth, access, tapping requirements and the condition of the steel surface.
Main selection factors
- Maximum cutter diameter and cutter length
- Overall machine height and available access
- Twist drilling, broaching, reaming, countersinking or tapping
- Forward/reverse and speed range
- Steel thickness, curvature, coatings and cleanliness
- Magnet footprint and holding force
- 110V or 230V site supply
- Coolant and chip control
Which HMT drill fits the job?
| Machine | Cutter capacity | Tapping | Weight |
|---|---|---|---|
| HMT Steelbor S36 Compact Magnetic Drill | 36mm | No | 10kg |
| HMT Steelbor S50 Magnetic Drill | 55mm | No | 12.7kg |
| HMT Steelbor V60T Tapping Magnetic Drill | 60mm | M20 | 18kg |
| HMT Steelbor V125T Heavy-Duty Magnetic Drill | 125mm | M32 | 25kg |
| HMT Steelbor RTQ40 Low-Profile Magnetic Drill | 12–40mm | No | 10.8kg |
Safe magnetic drilling
- Use the supplied safety strap or secondary restraint.
- The magnet needs suitable ferrous material, adequate thickness and a clean flat contact area.
- Do not rely on the magnet on thin, curved, painted, rusty or contaminated steel without an engineered solution.
- Secure work, control swarf and coolant, and keep cables clear.
- Use the correct cutter speed, pilot pin and lubricant.