The Bernardo GB 40 SN gear drill is a professional pillar drill with a speed range (18) of 50 – 1450 rpm and a weight of 495 kg. Krollit, official Bernardo distributor since 2007.
- Max. drilling capacity: 40 mm
- Max. thread cutting: M24
- Drill chuck: 1 – 16 mm / B 16
- Morse taper: MK 4
- Spindle speed: (18) 50 – 1450 rpm
- Feed range: 0.1 / 0.2 mm/rev
Who uses the GB 40 SN gear drill and for what?
Mechanical workshops and metalworking shops use the GB 40 SN gear drill for precision drilling on steel and cast iron, thread cutting with a tapping machine, and repetitive work on parts of various sizes.
Its place in the Bernardo range
The Bernardo GB 40 SN gear drill is part of the Bernardo pillar drill range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: 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 working days (7 days to the South). For spare parts and accessories, shipping in 3-5 working 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 40 SN gear drill for?
The GB 40 SN gear drill is recommended for the following professional profiles:
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Mechanical workshops and metalworking shops: precision drilling on steel and cast iron, thread cutting with a tapping machine.
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Maintenance workers and repair shops: repetitive drilling work on parts of various sizes.
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Occasional hobby use: professional machine: for domestic use, consider compact benchtop models.
Spindle, tools, and speed
| Drill chuck |
1 – 16 mm / B 16 |
| Morse taper |
MK 4 |
| Spindle speed |
(18) 50 – 1450 rpm |
| Max. spindle – table distance |
680 mm |
| Spindle – base plate distance |
1200 mm |
Table, dimensions, and geometry
| Arm length |
345 mm |
| Column diameter |
140 mm |
| Table dimensions / T-slot dimensions |
560 x 520 mm / 18 mm |
| Vertical clamping surface / T-slot dimensions |
560 x 250 mm / 18 mm |
| Base plate working surface |
505 x 540 mm |
| Weight approx. |
495 kg |
Other specifications
| Max. thread cutting |
M24 |
| Feed range |
0.1 / 0.2 mm/rev |
| Machine dimensions (L x W x H) |
560 x 930 x 2250 mm |
| Max. drilling capacity |
40 mm |
| Spindle travel |
195 mm |
| Motor input power S1 100% |
0.85 kW / 1.5 kW |
| Motor output power S6 40% |
1.1 kW / 2.2 kW |
Standard equipment
- Improved Safety: The protective cover is equipped with a limit switch, offering greater safety during use.
- Keyless drill chuck 1 – 16 mm / B 16
- Drill arbor MK 4 / B 16
- Electromagnetic spindle feed
- Height-adjustable protective cover
Frequently asked questions
What is the drilling capacity of the GB 40 SN gear drill?
See the "Drilling capacity" data in the machine's technical table.
The capacity refers to standard unhardened steel. On harder materials or alloys, the actual capacity may be lower: reduce speed and feed rate 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 bit diameter and material prolongs 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) fittings 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 with a tapping machine?
Only models with standard right/left rotation allow tapping with automatic tap release.
Check the "Right/left rotation" or "Thread cutting" specification: drills without mechanical reversal are not suitable for repetitive tapping.
What is the machine's weight and what installation does it require?
The weight varies from approximately 25 kg (compact benchtop models) to over 250 kg (industrial Profi models).
Benchtop models are installed on a sturdy workbench; pillar or radial drills require floor mounting with expansion anchors for stability during drilling.
