Best Drills for Plumbers UK 2026
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Why plumbers need a different drill
A plumber's drill earns its keep in awkward places — under sinks, inside airing cupboards, behind boilers, between floor joists. The big general-purpose combi drill that a builder swears by is often too long to fit in the spaces a plumber actually has to drill. What plumbers need is a compact 18 V combi drill with a 13 mm chuck, enough torque to drive 100 mm screws into joists for pipe brackets, and a hammer mode for the inevitable masonry fixings around boiler flue exits.
This guide covers the best drills for UK plumbers in 2026, focused on compact body length, chuck capacity and battery platform — the three things that actually matter when you are on the second floor of a Victorian semi at 4 pm and the boss wants the boiler commissioned by tea.
What plumbers should look for in a combi drill
The headline torque numbers brands shout about are largely irrelevant to plumbing. What matters is whether the drill fits where you need it to go and shares a battery with the rest of your kit:
- Body length (compact head): Measure the front-to-back length of the drill body. Anything over 200 mm will not fit between studs in a typical UK partition wall, and many sub-floor or kitchen-base situations need a head length under 175 mm. The compact 18 V models below all sit between 165 mm and 195 mm — a different category from full-size combi drills.
- Chuck capacity (13 mm): A 10 mm chuck will not accept the larger flat-bit, hole-saw arbours and step drills you use for pipe penetrations. Insist on a 13 mm metal keyless chuck. Plastic chucks loosen under load and are a false economy on a drill that will see flat bits and hole saws.
- Battery platform you already own: The drill is the cheapest part of going cordless. The expensive bit is building a battery platform. If you already have Makita LXT, Milwaukee M18 or DeWalt 18 V XR batteries, buy the bare-tool drill in the same family unless there is a compelling reason not to. Switching platforms means duplicating chargers and batteries, which adds hundreds of pounds.
- Brushless motor: Brushless motors run cooler, last roughly twice as long as brushed equivalents and squeeze more work out of each battery charge. For a tool you will use every day, the small price premium pays back within months.
- Hammer action: Plumbers drill more masonry than you might expect — boiler flue penetrations, condensate pipe exits, bracket fixings into brick. A combi drill (drill, screwdriver, hammer) is the right choice over a plain drill-driver. You will not need an SDS rotary hammer for these light masonry jobs as long as the combi drill has a usable hammer mode.
Top picks: best drills for plumbers UK 2026
Makita DHP484 18V LXT Brushless Combi Drill
~£130–£180 (bare) / £220–£280 (kit)Best for: Best overall combi drill for plumbers
The Makita DHP484 is, for many UK plumbers, the default answer. 175 mm front-to-back, 13 mm metal keyless chuck, 54 Nm of torque (more than enough for 100 mm joist screws), brushless motor, two-speed gearbox and a hammer mode that copes with light masonry without complaint. Sits in the LXT family alongside Makita's reciprocating saws, press tools and inspection cameras — the broadest battery ecosystem on the UK trade market.
View on Amazon →Bosch GSB 18V-55 Professional Brushless Combi Drill
~£110–£160 (bare) / £180–£240 (kit)Best for: Best for tight spaces and accuracy
The Bosch GSB 18V-55 is the most compact in this group at 165 mm head length — the difference of 10 mm matters when you are squeezing a drill between a copper run and a stud. 13 mm chuck, 55 Nm torque, brushless motor and Bosch's blue Professional 18 V battery system, which has expanded considerably over the past two years. Build quality is excellent and the chuck grip on hex shanks is the firmest in the group.
View on Amazon →Milwaukee M18 FUEL Compact Brushless Combi Drill (M18 FPD2)
~£170–£220 (bare) / £280–£350 (kit)Best for: Best for plumbers who also do heating work
The Milwaukee M18 FUEL is the heavyweight option — not in size (the FUEL compact version is 175 mm head length) but in performance. 135 Nm peak torque (more than twice the Makita), brushless POWERSTATE motor and Milwaukee's REDLINK Plus electronic protection. If you also do heavy heating work — cast iron radiator removals, large-diameter hole saws through joists for waste pipes — the extra torque is genuinely useful. Pairs perfectly with the Milwaukee M18 SAWZALL and FORCE LOGIC press tools.
View on Amazon →DeWalt DCD709 18V XR Brushless Compact Combi Drill
~£100–£145 (bare) / £170–£220 (kit)Best for: Best value brushless option
The DeWalt DCD709 is the value pick of the four. 175 mm head, 13 mm chuck, brushless motor and the full DeWalt 18 V XR battery ecosystem behind it. Torque is lower than the Makita and Milwaukee at 65 Nm but more than adequate for plumbing work. The XR battery family is widely available second-hand and cheaper than Milwaukee equivalents, which makes this the natural choice for plumbers building a kit from scratch on a budget.
View on Amazon →Quick comparison
| Drill | Head Length | Chuck | Torque | Best For |
|---|---|---|---|---|
| Makita DHP484 | 175 mm | 13 mm metal | 54 Nm | All-round LXT platform |
| Bosch GSB 18V-55 | 165 mm | 13 mm metal | 55 Nm | Tightest spaces |
| Milwaukee M18 FPD2 | 175 mm | 13 mm metal | 135 Nm | Plumbing + heating work |
| DeWalt DCD709 | 175 mm | 13 mm metal | 65 Nm | Best value brushless |
How to use a combi drill safely on plumbing work
- Always use a cable and pipe detector before drilling into walls: Plumbers know better than most where pipes run, but you will still drill through one if you guess. A £30 detector will pay for itself the first time you avoid a flooded ceiling. Run the detector vertically and horizontally over the planned hole position.
- Keep the chuck clean and tight: Plaster dust, copper swarf and PTFE residue clog a keyless chuck and stop it gripping properly. A blast of compressed air and an occasional drop of light oil on the chuck threads keeps it gripping. A bit that slips during a hole-saw cut is genuinely dangerous.
- Use the clutch when driving screws into pipe brackets: Cranking screws past the bracket on full torque cracks plastic clip-style brackets and over-compresses cushioned ones. Set the clutch to roughly the third lowest position for plastic brackets and feel for the click.
- Charge batteries indoors: Lithium-ion batteries lose capacity if charged below 10°C or above 30°C. Leaving the charger on the dashboard of a hot van in summer or a freezing one in winter shortens battery life dramatically. Take the batteries inside overnight.
Frequently asked questions
Do plumbers need an SDS drill as well as a combi drill?
Most domestic plumbers can manage with a good 18 V combi drill plus a small SDS rotary hammer kept in the van for the heavier masonry — flue penetrations through 9-inch brick walls, condensate runs through external solid walls. A combi drill alone struggles on anything over a 14 mm hole in old hard brick. If you mainly do new builds in modern blockwork, a combi drill on hammer mode is usually enough.
Why is a 13 mm chuck better than 10 mm for plumbing?
Most flat bits, hole-saw arbours and self-feed bits used to make pipe penetrations have a 10 mm or 13 mm hex shank. A 10 mm chuck physically will not accept a 13 mm shank, which rules out a large slice of the bits a plumber uses every day. A 13 mm chuck takes everything from a 1 mm pilot bit up to a 13 mm shank, which covers virtually every plumbing application.
Should plumbers buy bare tools or kits?
If you already own batteries on the same platform, always buy bare. Two extra 4 Ah batteries and a charger you do not need cost roughly £100 to £150 wasted. If you are starting from scratch, the kit is better value — you get two batteries, a charger and a case for considerably less than buying them separately.