The Flott TB 20 Plus is a professional pillar drilling machine, with a speed range of 40 – 4,000 rpm (adjustable), a 1.5 kW motor, and a weight of 170 kg. Krollit has been the official Flott distributor since 2007.
- Power supply: 400 V three-phase with frequency converter
- Motor power: 1.5 kW
- Drilling capacity (steel E335/ST60): 20 / 23 mm
- Tapping capacity: M12
- Drilling depth: 100 mm
- Throat depth: 240 mm
Who uses the TB 20 Plus and for what
Mechanical workshops and metalworking shops use the TB 20 Plus for precision drilling on steel and cast iron, tapping with a tapping chuck, and repetitive work on parts of various sizes.
Its place in the Flott range
The Flott TB 20 Plus is part of the Flott pillar drilling machine range, distributed in Italy by Krollit since 2007. The Flott range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Flott catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Machine shipping in 5-9 working days (7 days for Southern Italy). For spare parts and accessories, shipping in 3-5 working days from Krollit warehouse. Customer support in Italian is available for technical documentation, product sheets, and spare parts order management. Krollit has been the official distributor since 2007.
Who is the TB 20 Plus for?
The TB 20 Plus is recommended for the following professional profiles:
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Mechanical workshops and metalworking shops: precision drilling on steel and cast iron, tapping with a tapping chuck.
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Maintenance technicians 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 bench models.
Working capacity
| Drilling capacity (steel E335/ST60) |
20 / 23 mm |
| Tapping capacity |
M12 |
| Drilling depth |
100 mm |
| Depth indicator |
Digital |
Spindle, tools and speed
| Spindle speed |
40 – 4,000 rpm (adjustable) |
| Spindle taper |
MK II |
| Speed indicator |
Digital OLED |
Table, dimensions and geometry
| Column diameter |
82 mm |
| Work surface (L × W) |
340 × 280 mm |
| Machine dimensions |
355 × 705 × 1,065 mm |
| Weight |
170 kg |
Other specifications
| Throat depth |
240 mm |
| T-slots |
2 / pitch 125 mm / 13–26 mm |
| Standard |
DIN EN 55011:2016 + A1:2017 |
| Warranty |
3 years (single shift use) |
| Power supply |
400 V three-phase with frequency converter |
| Motor power |
1.5 kW |
Frequently asked questions
What is the drilling capacity of the TB 20 Plus?
See the "Drilling capacity" data in the machine's technical table.
The capacity refers to standard unhardened steel. On harder materials or alloyed 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 step models, via inverter or variator in Vario models.
Vario models allow continuous adjustment, while step models require moving the belt to different pulleys. Correct speed selection based on drill bit 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) tapers 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 chuck?
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?
The weight varies from approximately 25 kg (compact bench models) to over 250 kg (Profi industrial models).
Bench models are installed on a sturdy workbench, while pillar or radial models require floor fixing with expansion anchors for stability during drilling.
