Bernardo Mill-Drill KF 25 D Vario
The Bernardo KF 25 D Vario mill-drill is a robust machine, designed for drilling, milling, and threading. Thanks to its 2-stage gearbox and continuous speed adjustment (50–2250 rpm), it offers the possibility to adapt the spindle speed to the material type and machining process.
The 500 x 180 mm cross table with 305 x 150 mm travel and graduated scale ensures precision in movements. The ±90° inclinable head allows for angular machining, chamfering, and oblique drilling, while the tapered roller bearings guarantee high spindle concentricity (≤0.015 mm).
Equipped with right/left rotation for threading, digital display for speed and spindle travel, adjustable guard, and CE-compliant EMC filter, this machine is the choice for small workshops and craft businesses that require precision and compactness.
Main Specifications
Drilling capacity in steel up to Ø 20 mm
Face milling max. Ø 63 mm and end milling max. Ø 20 mm
Continuously variable speed (50–2250 rpm) with 2-stage gearbox
Cross table 500 x 180 mm with travel 305 x 150 mm and graduated scale
Head inclinable ±90° for angular machining and chamfering
High spindle concentricity ≤0.015 mm with tapered roller bearings
Right/left rotation for threading included
Digital display for speed and spindle travel as standard
Dovetail guides on X, Y, and Z adjustable with gibs
Height-adjustable guard and CE-compliant EMC filter
Compact and stable structure, weight 110 kg
Technical table:
| Specification |
Value |
| Drilling capacity in steel |
20 mm |
| Face milling capacity |
63 mm |
| End milling capacity |
20 mm |
| Spindle-column distance |
170 mm |
| Spindle-table distance min./max. |
45 – 325 mm |
| Spindle travel |
52 mm |
| Spindle speed (stepless) |
50 – 1125 / 100 – 2250 rpm |
| Spindle taper |
MT 2 |
| Table dimensions |
500 x 180 mm |
| Table travel (X / Y) |
305 / 150 mm |
| Head tilt |
-90° to +90° |
| Head height adjustment |
275 mm |
| T-slot dimensions |
12 mm |
| Motor power S1 100% |
0.60 kW / 230 V |
| Motor power S6 40% |
0.90 kW / 230 V |
| Machine dimensions (L x W x H)* |
750 x 560 x 930 mm |
| Weight |
approx. 110 kg |
| * without stand |
|
Package contents:
B16 drill chuck arbor
Drawbar
Digital spindle travel display
Digital speed display
CE-compliant EMC filter
Height-adjustable guard
Tool set
Logistics
Bernardo shipping: 5–9 working days (7 days for Southern Italy). Original spare parts available with 3–5 working day shipping. Customer support available in Italian.
Frequently asked questions
What is the difference between a drill press and a mill-drill?
A drill press only has vertical spindle movement and a rotating table — suitable exclusively for drilling. A mill-drill (KF series) adds dovetail guides on the X and Y axes which allow the workpiece to be moved in two directions during machining: this enables face milling, slab milling, boring, and multiple drillings without repositioning the workpiece. The gray cast iron rigidity of the KF series is essential for absorbing the lateral forces of milling, which a standard drill press cannot withstand.
Which cutters are used with the MT3 / MT4 taper?
The MT3 or MT4 Morse taper of the KF series accepts: tapered shank cutters (with direct reduction in the spindle), tapered shank tool holders, ER32/ER40 collets for cylindrical shank cutters. With the MT3→B16 reduction, the keyless drill chuck for standard drill bits is mounted. For face milling, use milling heads with the corresponding tapered connection. Always check the maximum permissible peripheral speed for each tool before use.
Does the Vario-drive system work without stopping the machine?
Yes. The Vario-drive system continuously adjusts the speed via a mechanical variator without stopping the machine or moving belts — you turn the knob during operation. To switch from slow drilling on hard steel to fast milling on aluminum, it takes only 3 seconds instead of 2–3 minutes of machine downtime with a traditional belt change.
Are spare parts and assistance available?
Original Bernardo spare parts available with 3–5 working day shipping. Customer support available in Italian.
How much space is needed in the workshop?
The KF series milling machines have a smaller footprint compared to BFM/WFM workshop milling machines. Consider free space equal to the longitudinal travel on both sides of the table, plus 60 cm for safe working. Contact Krollit for the complete dimensions of the specific model.
