The Bernardo GB 28 S geared drill press is a professional-grade pillar drill with 12 speeds from 75 – 3200 rpm and a weight of 215 kg. Krollit, official Bernardo distributor since 2007.
- Max. drilling capacity: 28 mm
- Max. threading: M12
- Drill chuck: 1 – 13 mm / B 16
- Morse taper: MK 3
- Spindle speeds: (12) 75 – 3200 rpm
- Arm length: 250 mm
Who uses the GB 28 S geared drill press and for what
Mechanical workshops and metalworking shops use the GB 28 S geared drill press for precision drilling on steel and cast iron, threading with taps, and repetitive work on parts of various sizes.
Its place in the Bernardo range
The Bernardo GB 28 S geared drill press is part of Bernardo's range of pillar drills, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Machine shipping in 5-9 business days (7 days for Southern Italy). For spare parts and accessories, shipping in 3-5 business days from Krollit warehouse. Italian-speaking customer support available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.
Who is the GB 28 S geared drill press for?
The GB 28 S geared drill press is recommended for the following professional profiles:
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Mechanical workshops and metalworking shops: precision drilling on steel and cast iron, threading with taps.
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Maintenance personnel and repair shops: repetitive drilling work on parts of various sizes.
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Occasional hobby use: professional machine: for home use, consider compact benchtop models.
Spindle, tools, and speed
| Drill chuck |
1 – 13 mm / B 16 |
| Morse taper |
MK 3 |
| Spindle speeds |
(12) 75 – 3200 rpm |
| Max. spindle / table distance |
810 mm |
| Spindle / base plate distance |
1210 mm |
Table, dimensions, and geometry
| Arm length |
250 mm |
| Column diameter |
100 mm |
| Base plate working surface |
325 x 330 mm |
| Table size / T-slot dimensions |
375 x 375 mm / 14 mm |
| Approx. weight |
215 kg |
Other specifications
| Max. threading |
M12 |
| Machine dimensions (L x W x H) |
450 x 600 x 2020 mm |
| Max. drilling capacity |
28 mm |
| Spindle stroke |
130 mm |
| Motor input power S1 100% |
0.85 / 1.1 kW (400 V) |
| Motor output power S6 40% |
1.1 / 1.5 kW (400 V) |
Standard equipment
- High Precision: High-quality ball bearings provide high spindle concentricity, ensuring high-precision results.
- Geared drill chuck 1 – 13 mm / B 16
- Drill arbor MK 3 / B 16
- Height-adjustable protective cover
Frequently asked questions
What is the drilling capacity of the GB 28 S geared drill press?
See the "Drilling capacity" data in the machine's technical table.
The capacity refers to standard unhardened steel. On harder materials or alloy steels, the actual capacity may be lower: reduce speed and feed to avoid stressing the spindle and tools.
How is the spindle speed adjusted?
Via mechanical belt or gear change in stepped models, via inverter or variator in Vario models.
Vario models allow continuous adjustment, while stepped models require moving the belt to different pulleys. Correct speed selection based on drill diameter and material extends tool life.
What spindle taper and type of tools does it support?
See "Spindle taper" in the technical table: typically MT 2, MT 3 or MT 4 depending on the model.
MT (Morse Taper) connections are international standards and accessories (arbors, keyless chucks, reductions) are commonly available on the market. Krollit supplies original Bernardo accessories.
Does the drill allow tapping?
Only models with standard right/left rotation allow tapping with automatic tap release.
Check the "Right/left rotation" or "Tapping" specification: drills without mechanical reversal are not suitable for repetitive tapping.
What is the weight of the machine and what installation does it require?
Weight varies from approximately 25 kg (compact benchtop models) to over 250 kg (industrial Profi models).
Benchtop models are installed on a sturdy workbench, while pillar or radial models require floor mounting with expansion anchors for stability during drilling.
