Head to head
Festool DF 500 RQ-Set vs Karcher K5 Power Control Flex
The Festool DF 500 RQ-Set is a domino jointing machine for loose-tenon joinery. The Karcher K5 Power Control Flex is a domestic electric pressure washer for patios, cars and outdoor cleaning.
Last reviewed 13 September 2026
Specifications side by side
| Festool DF 500 RQ-Set | Karcher K5 Power Control Flex | |
|---|---|---|
| Weight | 3.60 kg (without accessories) | 12.4 kg (without accessories) |
| Power consumption | 420 W | - |
| No-load speed | 25,500 rpm | - |
| Domino cutter diameters | 4, 5, 6, 8, 10 mm | - |
| Max routing depth | 28 mm | - |
| Max pressure | - | 20-145 bar |
| Max flow rate | - | 500 l/h |
| Area performance | - | 40 sq m per hour |
Sources: Festool DF 500 RQ-Set, Karcher K5 Power Control Flex. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the DF 500 RQ-Set if...
The DOMINO DF 500 replaced traditional dowelling and biscuit jointing for many furniture makers and joiners, letting them cut precise mortises for loose tenons quickly. It has no direct equivalent from the other brands in this catalogue, which is part of its appeal to Festool users.
Full DF 500 RQ-Set specifications →Buy or hire the K5 Power Control Flex if...
The K5 sits in Karcher's mid-to-upper domestic range, bought outright by homeowners for regular patio, car and garden furniture cleaning rather than hired. It is frequently the model UK reviewers and retailers use as the benchmark domestic Karcher pressure washer.
Full K5 Power Control Flex specifications →Common questions
What is the difference between the Festool DF 500 RQ-Set and the Karcher K5 Power Control Flex?
The Festool DF 500 RQ-Set is a dOMINO jointing machine for loose-tenon joinery; the Karcher K5 Power Control Flex is a domestic electric pressure washer for patios, cars and outdoor cleaning.
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