Milwaukee M18 BJS Jigsaw UK Review – Tested and Rated

The Milwaukee M18 BJS sits in the middle of our best cordless jigsaws UK comparison – behind the Makita on brushless efficiency and behind the Bosch on cut quality, but ahead of the entire field on warranty cover. The 5-year registered warranty that Milwaukee applies across its M18 range is two years longer than any other jigsaw in this comparison, and for trade professionals who use a jigsaw daily that difference has genuine financial value. A motor failure in year four costs nothing under Milwaukee’s warranty versus a significant replacement cost under any 3-year alternative.

At 2,700 spm with four orbital settings and a brushed motor, the specification is competitive with the DeWalt DCS331 and the performance gap between them in everyday cutting is small. The M18 BJS is not the highest-specification jigsaw Milwaukee makes – the M18 BLJS brushless version exists for those wanting brushless efficiency on the M18 platform – but at around £110 body only it represents solid professional performance backed by the strongest warranty in the class.

Overview and first impressions

The M18 BJS makes the same immediate quality impression as the rest of the Milwaukee M18 range. The red and black livery, the substantial feel and the build quality that Milwaukee maintains consistently across its professional line are all present. The grip is ergonomically well-designed with a comfortable overmould that provides secure purchase across a range of hand sizes and cutting orientations. At 1.7kg bare it is among the lighter tools in this comparison – heavier than the Bosch at 1.5kg and the Ryobi at 1.4kg, but noticeably lighter than the Makita and DeWalt at 2.1kg and 2.3kg respectively with equivalent batteries fitted.

The blade change uses a tool-free key release mechanism with firm blade retention and minimal play – a reliable system that keeps cut tracking accurate without the positional uncertainty of a slightly loose holder. The base plate pivots cleanly for bevel cuts up to 45 degrees and locks positively at any selected angle. Four orbital settings are dialled in via a thumb-operated selector with clear, detented positions. The dust blower clears the cut line adequately at all speeds, though it is less powerful than the dedicated blowers on the Makita and DeWalt. First impressions throughout are of a tool built for sustained professional use – controls are positive, the housing is solid and nothing flexes or rattles under load.

Specifications and scores

How it performed in our tests

The M18 BJS performed consistently well across all standard cutting tasks in our matched test sequence. In 18mm plywood on orbital setting 1, the cut was clean with a straight, well-tracked edge that compared favourably with the DeWalt at the same task. In 45mm softwood at orbital setting 2, cutting speed was strong – the 2,700 spm ceiling is slightly below the DeWalt’s 3,000 spm and the difference shows in straight-run speed, though the gap is not large in practice. In 18mm hardwood at orbital setting 0, the cut quality was very good with minimal tearout on a fine-toothed blade.

The build quality impressed throughout the extended test period. The base plate remained flat and stable under all cutting conditions, the blade holder showed no play even after sustained use, and the tool ran noticeably cool through a morning of continuous cutting – a characteristic that suggests the motor is not being worked near its limits at typical domestic and trade cutting loads. The lighter bare weight of 1.7kg made overhead cuts and sustained one-handed guiding noticeably less tiring than with the heavier rivals in the group.

Battery system and runtime

The M18 BJS runs on Milwaukee’s M18 platform – one of the most established professional cordless systems in UK trade, with over 200 compatible tools available from Screwfix and Toolstation as standard. The platform depth is a genuine long-term advantage for anyone building a professional toolkit over time. M18 batteries are slightly less distributed in mainstream DIY retail than DeWalt XR – B&Q stocks XR but not M18 as standard – though for trade buyers sourcing from Screwfix and Toolstation this distinction is irrelevant. Fast charge times are an M18 platform strength: a 3.0Ah battery charges in approximately 25 minutes on the M18 C4 charger.

Performance and limitations

The M18 BJS is a capable, well-built jigsaw whose performance sits comfortably in its position in the comparison. Cut quality is competitive with the DeWalt DCS331 across all standard materials and the build quality is the equal of any professional tool in the group. The 5-year warranty is the strongest in the class by a meaningful margin. Its limitations are the brushed motor – shared with the DeWalt – which produces lower runtime than the Makita and Bosch brushless tools on equivalent tasks, and the dust blower, which is less powerful than the dedicated blowers on the Makita and DeWalt. Neither limitation affects the core cutting experience for most users in typical trade or serious DIY applications.

For buyers considering the M18 BJS versus the M18 BLJS brushless version, the brushless tool delivers better runtime and a longer projected motor lifespan at a higher body price. For heavy daily trade use where the tool runs for hours every day, the brushless version’s efficiency compounds into meaningful savings over time. For the majority of professional users cutting at normal trade intensity, the BJS’s performance is fully adequate and the warranty protection applies equally to both versions.

Final verdict – is it worth it?

The Milwaukee M18 BJS is the right jigsaw for a specific and clearly defined buyer – one already invested in the M18 platform who values the combination of competitive performance, excellent build quality and the best warranty in the class. For that buyer the recommendation is unambiguous. The 5-year cover adds real financial value that compounds over a working life: a tool used daily for five years with full warranty protection is worth meaningfully more than the same tool with three years of cover, particularly for a brushed motor that will accumulate more hours than a tool used only occasionally.

Against the DeWalt DCS331 the comparison is genuinely close – the Milwaukee is lighter, better warranted and charges faster, while the DeWalt has a marginally higher stroke rate and wider battery retail availability. Neither advantage is large enough to justify switching platforms. Against the Makita DJV182Z the brushless efficiency advantage is real and the Makita leads on cut precision, but the 5-year warranty is a meaningful counter-argument for any trade user making a long-term investment decision.

At around £110 body only the M18 BJS is honest value for an M18 platform user who wants proven Milwaukee quality with the strongest warranty in the class. It sits comfortably in third place in our comparison without reservation.