The Bernardo DG 32 MD drill bit sharpener sharpens twist drills from Ø 12–32 mm, point angle 90°–140°, speed 4,800 rpm, 0.25 kW single-phase 230V motor. Weight 30 kg. Distributed in Italy by Krollit as official Bernardo distributor since 2007.
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Sharpenable drill bit diameter: Ø 12–32 mm
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Point angle: 90°–140°
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Speed: 4,800 rpm
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Motor power: 0.25 kW – 230V single-phase
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Dimensions (L × W × H): 425 × 220 × 235 mm
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Weight: 30 kg
Who uses the DG 32 MD and for what
The Bernardo DG 32 MD sharpener restores worn twist drill bits in the Ø 12–32 mm range — with an integrated web thinning device. In a mechanical workshop that drills regularly, drill bits are among the most frequent consumables: an HSS drill bit of Ø 10 mm costs 3–8 euros; sharpening it with the DG 32 MD takes 20–40 seconds. At 30 kg and single-phase 230V, it can be installed on any workbench without additional equipment. In Krollit customers' workshops, it is used by mechanical workshops, metalworking shops, and maintenance laboratories.
Who is the Bernardo DG 32 MD for
| Profile |
Compatibility |
Reason |
| Passionate hobbyist |
Suitable |
30 kg, 230V: adequate for advanced hobbyists with significant drill bit consumption. |
| Professional mechanical workshop |
Ideal |
Ø 12–32 mm range: restores the most used drill bits in the workshop with an ROI measurable in weeks. |
| Intense industrial production |
Adequate |
For very high volumes, consider automatic sharpeners. The DG 32 MD is optimal for manual sharpening on demand. |
Not suitable for: drill bits outside the Ø 12–32 mm range; carbide drill bits without a dedicated diamond grinding wheel; taps (consider STG 20/42).
Technical specifications
| Specification |
Value |
| Sharpenable drill bit diameter |
Ø 12–32 mm |
| Point angle |
90°–140° |
| Speed |
4,800 rpm |
| Motor power |
0.25 kW |
| Power supply |
230V – single-phase |
| Dimensions (L × W × H) |
425 × 220 × 235 mm |
| Weight |
30 kg |
Compliance and safety
| Specification |
Value |
| Marking |
CE |
| Directive |
Machinery 2006/42/EC |
Logistics
Bernardo shipping: 5–9 working days (7 days to the South). Original spare parts available with 3–5 working day shipping. Italian-speaking customer support available.
Frequently asked questions
What is the difference between DG 32 MD and other Bernardo drill bit sharpeners?
The Bernardo range for drill bits covers: DG 13 M (Ø 2–13 mm, 8 kg), DG 13 MD (Ø 2–13 mm with web thinning, 8.1 kg), DG 20 M (Ø 2–20 mm with CBN grinding wheel, 8.6 kg), DG 32 Pro (Ø 2–32 mm, 32 kg), DG 32 MD (Ø 12–32 mm with web thinning, 30 kg). The choice depends on the maximum diameter of the drill bits used in the workshop.
Does the DG 32 MD sharpen carbide drill bits?
With the standard grinding wheel included, the DG 32 MD is optimized for HSS drill bits. For tungsten carbide drill bits, a diamond grinding wheel is recommended. Contact Krollit for the specific grinding wheel.
How long does it take to sharpen a Ø 10 mm drill bit?
With the DG 32 MD, a slightly worn Ø 10 mm HSS drill bit takes 20–40 seconds. A very worn drill bit can take 1–2 minutes. The consistency of the result increases with operator practice.
Are replacement grinding wheels available?
Yes. Original Bernardo replacement grinding wheels are available with 3–5 working day shipping.
Is specific training required to use it?
Bernardo drill bit sharpeners have guide systems that automatically position the drill bit at the correct angle. The operator only needs to insert the drill bit into the holder and advance it against the grinding wheel. Learning takes 5–10 minutes of practice.
