JCB Pro 18V 2000Nm and 2300Nm Impact Wrenches Review

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JCB Pro 18V 2,000Nm & 2,300Nm Impact Wrenches Review - JCB-18PIW-2000 & JCB-18PIW-2300

By Mark Moore, Power Tools Editor · Updated 8 September 2026 · 13 min read

Twelve months ago the top of JCB's Pro 18V wrench range was the 620Nm 18PIW-620, which we rated 4.5/5 as a farm-and-plant nut-buster that comfortably out-torqued its £89.99 350Nm sibling. JCB Tools has now leapfrogged that entirely with two new wrenches that move into a different weight class altogether: a 3/4"-drive 2,000Nm model and a full 1"-drive 2,300Nm model. This review covers what each does, where they sit against the rest of the Pro 18V wrench family, how they measure up against the DeWalt/Makita/Milwaukee competition, and - most importantly - who genuinely needs this much torque and who should save their money.

(System context in our Pro 18V buying guide.)

Specifications

Torque literacy, restated for the big numbers

As with the 620, JCB publishes both figures rather than hiding behind one headline number: fastening torque is what the wrench drives and runs down fasteners with; breakaway torque is the hammering peak reserved for cracking a seized nut loose. On the 2000, that's 1,800Nm working with 2,000Nm in reserve. On the 2300, it's 2,100Nm working with 2,300Nm in reserve. Both step up through three fastening settings plus a dedicated breakaway mode, so you're not stuck choosing between "gentle" and "structural failure" - a wheel nut on a light trailer and a corroded pivot pin on a 20-tonne excavator get genuinely different settings on the same tool.

3/4" vs 1": why drive size is the real headline here

The torque figures matter, but the drive size is what actually gates what you can bolt to these wrenches. Most cordless impact wrenches - including nearly every "high torque" model from the big three - use a 1/2" square drive, the same size as a typical car socket set. JCB's own 350 and 620 are 1/2" drive. The 2000 steps up to 3/4" drive, the size used on HGV and heavy plant wheel nuts, and the 2300 goes further still to a full 1" drive, the size reserved for the heaviest structural and agricultural fastening. You cannot run a 1/2" chrome socket on either of these safely, and you shouldn't want to - impact-rated 3/4" and 1" sockets are a different, chunkier category of accessory, and buying into this pair means budgeting for the right sockets alongside the tool.

Where they sit in the JCB Pro 18V wrench family

Read top to bottom, it's a genuinely coherent range now rather than a single wrench with a big brother: 350 for the driveway, 620 for the farm and trade van, and the 2000/2300 for the yard, the depot and the plant workshop. All four run the same Pro 18V batteries - buy the biggest wrench you need and it still charges on the same dock as your drill.

How they compare to the wider market

This is the more interesting comparison, because most cordless brands simply don't compete at this torque and drive size without asking you to leave their mainstream battery platform. Here's how the field looks at the time of writing:

Three things stand out. First, DeWalt's flagship "high torque" wrench - a 1/2"-drive tool - doesn't get near JCB's new pair on breakaway torque, let alone fastening torque, and can't touch either on drive size. Second, Milwaukee's ONE-KEY 1" and 1/2" high-torque wrenches post competitive breakaway numbers but Milwaukee's mainstream M18 range still centres on 1/2" drive for this category, and its true 1"-drive flagships typically sell well north of £350-400 bare. Third, the closest genuine match on paper is Makita's TW001G: near-identical torque to the 2000 at a similar price - except it runs on Makita's 40V XGT platform, a separate battery and charger system from Makita's mainstream 18V LXT range. Buy into it and you're funding a second battery ecosystem. JCB's pair matches or beats that torque while staying on the same 18V packs as the rest of the Pro range - the drill, the driver, the grinder and the 350/620 wrenches all share the same charger.

The honest context beyond cordless: at this torque level you're also encroaching on territory traditionally held by pneumatic (air) impact wrenches and petrol-driven equivalents used in HGV depots, railway tracks and industrial plant yards. JCB Tools isn't claiming to replace a shop's air line entirely, but for mobile, one-off or no-compressor jobs - a breakdown on the roadside, a tractor in a field, a scaffold tower on site - a cordless wrench that matches air-tool torque figures is a genuinely useful development, not just a spec-sheet exercise.

Who these are actually for

Be honest with yourself before spending £225-250 on a bare tool. These are built for:

• HGV and commercial vehicle tyre fitters - truck and trailer wheel nuts routinely use 3/4" and 1" drives and torque well beyond car spec.
• Agricultural machinery mechanics - tractor and combine wheels, PTO shaft bolts and undercarriage fasteners that sit outdoors, corrode, and fight back.
• Plant hire and construction plant maintenance - excavator, dumper and roller track and wheel bolts, where JCB's own brand heritage is directly relevant.
• Scaffolders and structural steel erectors - heavy bolted connections on staging and steelwork.
• Recovery and breakdown operators handling HGVs and plant, where a compressor isn't always on hand.

These are not for ordinary car DIY. If your heaviest job is seasonal wheel swaps, a caravan hitch or general workshop use, buy the 620 or the 350 instead - both are lighter, cheaper, use ordinary 1/2" sockets you probably already own, and comfortably out-torque anything a passenger car needs. The 2000 and 2300 are heavier (3.74-4kg bare, before you add a 5.0Ah battery), physically larger, and genuinely overkill - and more expensive - for that use case.

Batteries, sockets and the final-torque habit

Both wrenches ship bare - no battery, no charger - and at this power draw, treat 5.0Ah Pro packs (£54.98 each) as the realistic minimum rather than an upgrade; 2.0Ah packs will work but will not last a shift of this kind of fastening. Make sure your socket set actually matches the drive: 1/2" chrome sockets have no place on either tool, and impact-rated 3/4"/1" sockets are worth budgeting for alongside the wrench itself. And as with the 620: an impact wrench removes and runs fasteners down - it is not a torque-setting tool. Final-tighten safety-critical fasteners (wheels especially) with a calibrated torque wrench to the manufacturer's specification, every time.

Garden Review is reader-supported. Links to JCB Tools on this page are affiliate links - we may earn a commission on qualifying purchases at no extra cost to you. This does not influence our advice or ratings. Prices for JCB and competitor products verified September 2026 and subject to change. Always use impact-rated sockets matched to the correct drive size, and final-torque safety-critical fasteners with a calibrated torque wrench.