The HOLZSTAR LLB 20 PB mortising machine with dowel drilling device is a professional woodworking machine designed for precise mortising, row drilling and dowel hole drilling. It is suitable for woodworking shops, craft workshops, furniture manufacturers, joiners and operators who need to produce strong and repeatable joints in solid wood, strips, frames, panels and components intended for assembly.

The dowel drilling device allows row drilling with grid pitches of 16, 22, 25 and 32 mm. This function is particularly useful in furniture production, frame construction, modular components and workpieces where repeatable hole positioning is essential. The selectable grid pitch helps the operator maintain constant distances between holes, reducing marking errors and speeding up repetitive work.

The machine is equipped with a Wescott drill chuck from 0 to 20 mm and allows right/left rotation selection. The two spindle speeds, 2800 and 1400 min⁻¹, make it possible to adapt machining to the tool type, drill diameter and material being processed. This flexibility is useful both for dowel drilling and for mortising or preparing joint seats.

The 570x300 mm work table provides a stable support surface for the workpiece. One-hand lever operation allows the table to be moved quickly during drilling, supporting smooth and controlled work. The roller guide enables precise movement of the work table, while the set table height can be read from the scale, making adjustment and repetition easier.

The drill head height is conveniently and precisely adjusted by handwheel. The 160 mm height adjustment range allows the machine to be adapted to workpieces of different heights and different drilling configurations. The maximum drilling depth at 90° of 155 mm allows deep and controlled machining, useful for joints, seats and assembly holes.

The two eccentric clamps supplied secure the workpiece safely during operation. Stable clamping is essential to maintain drilling accuracy, prevent unwanted movement and ensure better machining quality. The angle stop adjustable by 60° on both sides, with ruler, allows angled work and corner joints to be set with greater control.

The machine has a robust base with a large lockable tool compartment. This allows drills, chisels, tools and accessories to be stored neatly directly in the machine, reducing preparation time and improving workplace organisation. The weight of approximately 140 kg contributes to stability during machining, while the base design makes the machine suitable for fixed workshop use.

The standard equipment also includes a 9.5 mm hollow mortising chisel and four chisel holders with 19, 20, 28 and 30 mm shanks. This configuration makes the LLB 20 PB suitable not only for dowel drilling, but also for producing mortises and joint seats. The 2.8 kW motor provides the power required for demanding work and professional use.

In practical use, before machining it is advisable to check correct workpiece clamping, set the drilling depth, select the most suitable spindle speed and check the position of the guide or dowel drilling device. For row drilling, it is useful to carry out a test on a sample piece, checking pitch, depth and alignment before proceeding with the final workpiece.

The HOLZSTAR LLB 20 PB mortising machine is therefore a complete solution for producing dowel holes, mortises and precise joints in woodworking. The combination of 16/22/25/32 mm grid dowel drilling device, lever-operated movable table, precise head height adjustment, two spindle speeds, right/left rotation, eccentric clamps and base with tool compartment makes it suitable for professional applications where precision, repeatability and stability are essential.