Comparison of Vertical Drilling Machines: OPTIdrill DQ 25 vs FLOTT TB 25 Plus vs Knuth TSB 25

Comparison of Vertical Drilling Machines: OPTIdrill DQ 25 vs FLOTT TB 25 Plus vs Knuth TSB 25

Choosing the right drilling machine is an important step for both small workshops and professional production. We reviewed three models with a maximum drilling diameter of about 25 mm and compared them based on key parameters: power, functionality, convenience, and reliability.

1. OPTIdrill DQ 25 — compact and versatile

OPTIdrill DQ 25 is a belt-driven model designed for precise work and daily use in small workshops.

Main features:

• Drilling diameter: up to 25 mm

• Number of speeds: 12

• Spindle speed: 200–2440 rpm

• Power: 0.75 kW

• Table with 360° rotation and ±45° tilt for angled drilling

• Strong base plate and high-quality power transmission

Pros:

• Rotating and tilting table — convenient for complex parts

• Stable and precise operation thanks to high-quality belt drive

• Compact size and relatively low weight — suitable for small spaces

Cons:

• Lower power compared to industrial models

• No digital indicators or advanced safety systems

2. FLOTT TB 25 Plus — professional balanced choice

FLOTT TB 25 Plus is a medium-format drilling and threading machine with a frequency converter and digital indicators.

Main features:

• Drilling diameter: 23/25 mm

• Motor power: 1.5 kW

• Spindle speed: 20–2000 rpm

• Spindle-to-table distance: 230–590 mm

• Digital speed and depth indicator

• Depth stop, OLED panel, LED lighting

Pros:

• High motor power — confident drilling in hard materials

• Digital indicators and convenient parameter control

• Frequency converter allows precise mode selection

• Ergonomic and feature-rich design

Cons:

• Requires three-phase 400 V power

• Larger and heavier than OPTIdrill DQ 25

3. Knuth TSB 25 — classic gearbox model

Knuth TSB 25 is a traditional gearbox drilling machine for workshops and production.

Main features:

• Drilling diameter: 25 mm

• Speed range: 125–2825 rpm

• Motor power: 0.75 kW

• Heavy cast-iron frame — 220 kg

• Rotating head for angled drilling

Pros:

• Simplicity and reliability — classic mechanics without electronics

• Wider speed range than many analogs

• Rigid cast-iron construction can withstand loads

Cons:

• Low motor power by modern standards

• No digital indicators or automated systems

• Less comfortable to operate compared to FLOTT TB 25 Plus

Conclusion: which one to choose?

Best in quality: FLOTT TB 25 Plus