Intro
When the job calls for cutting through something in a place where no saw was meant to go, a reciprocating saw — often called a sabre saw — is the tool that answers. Unlike a circular saw that needs a flat surface to ride on, or a jigsaw that wants a supported workpiece, the reciprocating saw goes wherever you can point it. Under a floorboard to sever old pipework. Through a wall cavity to cut out a stud. Into the crotch of a tree branch that is too thick for loppers. The long, exposed blade pushes and pulls at high speed, and the tool's narrow body lets you reach into cramped, awkward spaces where no other powered saw fits. It is not a precision instrument — you will not cut dovetail joints with it — but for demolition, rough-in carpentry, plumbing and electrical retrofit work, garden pruning, and any task where the priority is getting through the material quickly and moving on, a good reciprocating saw is one of the most liberating tools you can own. Add cordless freedom to the equation and you have a tool that goes up the ladder, into the loft, under the deck, and out into the garden without a second thought about extension leads.
Generalities
When choosing a cordless reciprocating saw, the headline numbers are stroke rate and stroke length. Stroke rate — typically measured in strokes per minute (SPM) — tells you how fast the blade moves, with higher rates cutting faster in softer materials like wood and plastic. Stroke length is equally important: a longer stroke means each tooth of the blade covers more distance per cycle, clearing chips more effectively and cutting faster in thick material. Brushless motors have transformed the cordless reciprocating saw category, delivering runtime and power that now rival corded models. Tool-free blade clamping is a must — you will change blades frequently as you move between wood, metal, and demolition tasks. An orbital action mode, where the blade moves in a slight elliptical path on the cutting stroke, dramatically speeds up cuts in wood at the expense of a rougher finish. Bosch Professional's BITURBO line represents their highest-performance 18-volt tools, designed to extract maximum power from their ProCore battery technology, and their reciprocating saw is built to the standard demanded by professional carpenters, plumbers, and demolition crews.
This review examines an 18-volt brushless reciprocating saw from Bosch Professional's BITURBO range. We test its cutting speed in timber, metal, and demolition scenarios, assess the blade-change mechanism and ergonomics during overhead and tight-space work, and evaluate how this cordless model compares to corded alternatives for professional day-in, day-out use.
Description
The Bosch Professional GSA 18V-28 is an 18-volt brushless reciprocating saw from Bosch's BITURBO high-performance line, designed to extract maximum cutting power when paired with ProCore 8.0 Ah or 12.0 Ah batteries. The brushless motor delivers up to 2,900 strokes per minute with a stroke length of 28 millimetres — a combination that provides rapid cutting progress in timber, metal, plastic, and demolition materials. The saw features selectable orbital action: switch it on and the blade moves in an elliptical path that clears chips more aggressively, dramatically speeding up cuts in wood and plasterboard; switch it off for a straight reciprocating motion that gives cleaner cuts in metal and more controlled plunge cuts. The tool-free blade clamp accepts standard universal-shank reciprocating saw blades — simply twist the collar, insert the blade, and release — no Allen key or chuck key required. The 230-millimetre blade length provided covers the majority of common cutting tasks, and the universal shank means blades from any manufacturer fit without adapters.
Ergonomics are a critical factor on a tool that sees hard use in awkward positions, and Bosch has invested meaningful design effort here. The GSA 18V-28 features a vibration-dampening counterbalance system that significantly reduces the tingling fatigue that prolonged reciprocating saw use typically causes — this is one of the most noticeable upgrades over entry-level saws. The main handle is rubber-overmoulded with a generous diameter that suits gloved hands, and the front grip area is large enough to be held securely while wearing work gloves. The tool weighs 4.1 kilograms as a bare unit — substantial enough to feel planted and stable during aggressive cuts but not so heavy that overhead work becomes punishing. The overall body measures 45 by 9.6 by 17 centimetres, with a slim nose profile that lets the blade reach into tight gaps between joists and into wall cavities. An integrated LED work light illuminates the cut line in dark spaces — invaluable when working inside cupboards, under floors, or in unlit loft spaces.
In use, the GSA 18V-28 lives up to the BITURBO performance promise. With a ProCore 8.0 Ah battery fitted, the saw tears through 45-millimetre structural timber at a pace that feels indistinguishable from a corded 1,100-watt saw. The orbital action mode is the go-to setting for demolition timber cutting, demolition of pallets, and pruning branches up to approximately 150 millimetres — the chip-clearing action prevents the blade from binding in wet or resinous wood. Switching to straight reciprocating mode with a fine-tooth metal blade, the saw cuts through 25-millimetre conduit, copper pipe, and even mild steel angle with controlled, predictable progress. The variable-speed trigger gives you precise control: squeeze gently for a slow start when positioning the blade on a precise mark, then ramp up to full speed once the cut is established. The tool-free blade change is genuinely fast — under five seconds from finishing a wood cut to starting a metal cut with a fresh blade.
Several practical features make the difference in daily professional use. The blade clamp mechanism is robust and reliable — no blade slip or wobble even during aggressive plunge cuts into floorboards. The saw includes a pivoting adjustable footplate (shoe) that lets you control the depth of cut and provides a stable reference surface when cutting flush against a wall or floor. The tool is part of Bosch Professional's 18V System and AMPShare alliance, so batteries — sold separately — work across the entire Bosch 18V and partner-brand ecosystem. The included L-BOXX carry case provides professional-grade protection during transport and stacks with other Bosch L-BOXX units for organised van storage. Two high-quality Bosch blades are included: an S 2345 X for wood and an S 123 XF for metal, giving you immediate capability across both materials out of the box.
The bare tool measures 45 by 9.6 by 17 centimetres and weighs 4.1 kilograms, placing it in the mid-weight category for professional reciprocating saws — lighter than some older corded models while retaining the mass needed for stability during heavy cutting. Bosch Professional backs the GSA 18V-28 with a 24-month manufacturer's warranty. Customer reception is strong: 4.7 out of 5 stars from 303 ratings on Amazon France, with a bestseller ranking of #11 in Reciprocating Saws. The €224 price point for the bare tool reflects the BITURBO brushless motor, the advanced vibration dampening, and the professional build quality — this is a tool purchased by tradespeople who use a reciprocating saw as a primary demolition and rough-cutting tool, not an occasional garden pruner.
Pros and cons
Pros
- BITURBO brushless motor paired with ProCore batteries delivers corded-class cutting performance — rips through 45 mm structural timber and demolition materials at a pace that matches corded 1,100 W saws
- Selectable orbital action dramatically speeds up wood and demolition cutting by clearing chips more aggressively — switch it off for cleaner, more controlled cuts in metal and for precision plunge cuts
- Counterbalance vibration-dampening system significantly reduces the hand-numbing buzz that plagues entry-level reciprocating saws — you can cut continuously for longer with less fatigue
- Tool-free blade clamp is fast and reliable — swap from a coarse wood blade to a fine metal blade in under five seconds without tools, keeping your workflow moving across mixed-material demolition jobs
- Included L-BOXX carry case with two quality Bosch blades (wood and metal) means the tool is job-site-ready straight out of the box — professional storage and immediate cutting capability without additional purchases
- Universal blade shank compatibility means you are never locked into Bosch-branded consumables — blades from Diablo, Milwaukee, DeWalt, and others fit perfectly without adapters
- Part of the Bosch 18V and AMPShare battery alliance — batteries work across hundreds of tools from Bosch and partner brands, protecting your investment if you expand your cordless kit
Cons
- Sold body-only without battery or charger — the €224 price does not include power, and a ProCore 8.0 Ah battery and charger add approximately €150 to the total system cost for first-time Bosch 18V buyers
- At 4.1 kilograms bare (heavier with a ProCore battery), sustained overhead cutting — such as ceiling joist demolition — will fatigue the operator faster than lighter models in the category
- BITURBO performance is only fully unlocked with ProCore 8.0 Ah or 12.0 Ah batteries — using standard 2.0 Ah or 4.0 Ah packs reduces cutting power and runtime significantly, so budget for the premium batteries to get the tool's full capability
- No rafter hook or belt clip — for a tool often used at height and on ladders, a hanging hook integrated into the body would improve convenience and safety between cuts
Use cases
The Bosch Professional GSA 18V-28 BITURBO reciprocating saw is a high-performance cordless demolition and rough-cutting tool purpose-built for professional carpenters, plumbers, electricians, and renovation contractors who need corded-class power with cordless freedom — especially those already invested in the Bosch 18V battery platform who can buy the bare tool and power it with ProCore batteries they already own.
Demolition and Strip-Out Work
Gutting a room for renovation means cutting through stud walls, floorboards, old pipework, nail-embedded timber, and sometimes materials you cannot identify until the blade is in them. The GSA 18V-28's orbital action powers through mixed demolition material quickly, and the universal blade clamp means you can switch to a demolition-specific blade with carbide teeth for cutting through nails and screws without dulling a wood blade. The cordless freedom is transformative on a demolition site where the mains power has already been isolated.
Plumbing and Electrical Retrofit Work
Running new pipework or cable through existing buildings means cutting access holes in floorboards, notching joists, and trimming back old copper and steel conduit in confined spaces. The slim nose profile and adjustable footplate let you make controlled plunge cuts into floorboards without over-cutting into the joist below, and the variable-speed trigger gives you the slow start needed to position the blade precisely on a cut line before ramping up to full speed.
Garden and Orchard Pruning
A cordless reciprocating saw fitted with a coarse pruning blade handles branches up to 150 millimetres in diameter faster and with less effort than a hand saw — and reaches into the tight angles between branches where a chainsaw cannot safely go. The orbital action clears green, sappy wood chips effectively without binding, and the cordless design means you can work your way around a large garden or orchard without dragging an extension lead through wet grass.
Window and Door Frame Removal and Installation
Replacing old timber window frames or door casings often means cutting through embedded fixings, old screws, and nails that have been in place for decades. A demolition blade in the GSA 18V-28 cuts through wood and metal fixings alike, and the adjustable footplate lets you make flush cuts against the wall to sever old frame legs cleanly. The vibration dampening is particularly appreciated during the repetitive cuts involved in removing multiple window frames in a single day.
Existing Bosch 18V System Expansion
For tradespeople already running Bosch Professional 18V tools — drills, impact drivers, circular saws, and grinders — adding the GSA 18V-28 body-only fills the demolition and rough-cutting gap in the cordless kit. A carpenter who already owns two ProCore 8.0 Ah batteries and a charger can put this saw to work for the cost of the bare tool alone, and the L-BOXX case stacks neatly with existing Bosch storage for organised van transport.