Flexodrill
FLEXODRILL is a unique solution that makes it easy to drill angled holes in components such as valve blocks using a CNC-controlled multi-operation machine. The system reduces clamping and saves machining time.
Under the right conditions, FLEXODRILL can drill a hole that is up to 20 times longer than the drill bit diameter.
Why Flexodrill?
Developed by Lalmek for its own use in the manufacture of hydraulic blocks.
Angled holes
Drill holes at different angles in both two and three dimensions in a single operation.
Saves processing time
Fewer setups mean more machining per run and shorter lead times.
Extremely deep holes
Under the right conditions, it drills holes up to 20 times longer than the drill bit's diameter.
CNC-compatible
Used directly in CNC-controlled multi-operation machines without special equipment.
High precision
Circular-polar motion ensures precise positioning and consistent hole quality.
In-house development
Developed and tested in Lalmek’s own production of valve blocks and hydraulic components.
Flexible Drilling for Complex Valve Blocks
FLEXODRILL is a system developed by Lalmek Hydraulics to address the need for angled holes in valve blocks. Instead of repositioning the workpiece multiple times, all holes can be drilled in a single setup.
Sizes and Dimensions
Flexodrill is available in three sizes designed for different drill bit diameters.
| Variant | Dimension A | Dimension B | Drill bit diameter | Collet |
|---|---|---|---|---|
| FD11 | 16 | 60 | 1,5–5 | ER11 |
| FD16 | 20 | 92 | 2,5–11 | ER16 |
| FD20 | 20 | 118 | 5–14 | ER20 |
All measurements are given in millimeters.
Examples of Drilling
Flexodrill can be used for a variety of drilling scenarios involving different angles and depths.
Figure 1
Figure 1 shows examples where high precision is required for positioning at (a), (b), and (c).
Figure 2
In Figure 2, the holes are drilled at a 15° angle in opposite directions from the same starting hole.
Figure 3
Figure 3 shows a complex hole that, due to the length of the drill bit, is difficult to drill compared to the drill bit’s small diameter.
Figure 4
In Figure 4, a 5-mm hole is drilled to a depth of 8.5 mm. The hole is then tapped with an M6 tap to a depth of 5 mm.
How It Works
Flexodrill is used in four steps to create high-precision angled holes.
Centering hole
Drill a center hole in the workpiece.
Lower the Flexodrill
Lower the tool into the pre-drilled hole.
Circular-polar motion
The tool performs a circular-polar motion to create the hole.
2 or 3 axes
Simultaneous movement along 2 or 3 axes for an angled hole.
Interested in Flexodrill?
Please contact us for more information, prices, and delivery times.