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Faithfull Multi-Tool Blades for UK Tradespeople — Flush Cut, Bi-Metal and 12pc Sets
The oscillating multi-tool has become one of the most versatile instruments on a UK tradesperson's van. Electricians use it to notch back boxes into plasterboard and trim conduit; plumbers cut through pipe lagging, tile grout, and silicone seals; carpenters and first-fix teams reach for it when undercutting door frames, cutting mitres in tight corners, and trimming excess from installed flooring. The tool itself is only as capable as the blade fitted to it — and Faithfull's range of oscillating blades gives UK tradespeople professional-grade options at trade-sensible prices.
APM Electricals stocks four Faithfull oscillating blade products, covering the most common multi-tool applications on domestic and light commercial sites. Whether you need a starter set covering most applications or individual blades to replenish the ones that have worn on a particular material, here is what each option is designed for.
Faithfull Multi-Function Tool Blade Set (12 Piece)
The 12-piece set is the logical starting point for any tradesperson who has just acquired an oscillating multi-tool or wants a comprehensive blade stock for a new van. It contains an assortment of cutting and sanding blades in HSS construction, sized to cover the day-to-day applications across trades: plunge cuts in plasterboard for back boxes, trimming timber, cutting plastic conduit, and sanding or scraping old sealant and adhesive from surfaces.
The universal fitment design means these blades are compatible with the major oscillating tool platforms on UK sites — Makita, Bosch, DeWalt, Milwaukee, and budget tools using the standard universal adapter. You do not need a brand-specific blade to get started. At £28.99 for 12 blades, the set works out well under £2.50 per blade — replacing individual worn blades from a premium brand would exceed that for a single unit.
For electricians and plumbers who use a multi-tool occasionally rather than all day, this set covers most jobs without needing to carry individual sizes. For tradespeople who do heavy multi-tool use, the 12pc set is a practical standby — a set to keep in the van as backup once you've settled on specific blade types for your primary work.
Faithfull Flush Cut Wood-Metal Blade 22mm Bi-Metal
The 22mm bi-metal flush cut blade is the tightest-width option in the Faithfull oscillating range and the one to reach for when working in confined spaces. At 22mm wide, it fits into stud cavities, conduit chase openings, and service voids where a wider blade would foul on adjacent materials. The HSS wavy-set tooth pattern is optimised for cutting through mixed materials in a single pass — wood, copper pipe, aluminium extrusion, sheet metal, plastic pipe, and plasterboard.
The bi-metal construction (CrV steel body, HSS tooth strip) means the blade flexes without fracturing when it encounters nails or screws embedded in timber — a common hazard on second-fix electrical work and any renovation job where materials have been previously worked. A purely carbon steel blade will shatter on a hidden fastener; bi-metal deflects and keeps cutting.
At £6.50 individual, the 22mm blade is a cost-effective consumable to stock in multiples. Plunge cuts in plasterboard and cuts into copper pipework blunt blades faster than clean timber work, and having replacement blades on the van prevents a job stopping because the current blade is past its working life.
Faithfull Flush Cut Wood-Metal Blade 44mm Bi-Metal — Pack of 5
The 44mm bi-metal blade is the workhorse width for most oscillating multi-tool tasks on a UK site. Wide enough to cut through a 3x2 stud or 25mm MDF sheet in a reasonable number of passes, but narrow enough to remain controllable in plunge-cut work. At 18 TPI (teeth per inch) and 50mm cutting depth, the 44mm bi-metal handles copper and plastic pipework, timber, sheet metal, plasterboard, and plastic trim without needing to switch blades for each material.
The pack of 5 is the trade buy. If 44mm is your primary oscillating blade size — as it is for most electricians and plumbers — buying in packs of 5 at £28.52 (£5.70 per blade) makes more sense than buying individuals and running out mid-job. The bi-metal CrV steel construction with HSS teeth provides the same material-tolerance as the 22mm version: it will cut through a hidden nail without fracturing and handles the variety of materials found on renovation and new-build work.
On first-fix electrical work, the 44mm bi-metal cuts back-box recesses into masonry and plasterboard, trims cable trays, and opens service penetrations in MDF boarding. On plumbing work, it cuts through push-fit plastic pipe, lagging, and copper tube for decommissioning or modification without reaching for a separate pipe cutter.
Faithfull Flush Cut Wood Blade 68mm CRV — Pack of 5
The 68mm CRV blade is the widest oscillating blade in the APM range and the one optimised for clean, straight cuts through wider timber sections and sheet materials. The CRV (chrome vanadium) construction with hardened side-set teeth delivers fast cutting through softwood, plasterboard, plastics, and plastic pipe — the ideal specification for light, quick cuts rather than the metal-cutting capability of the bi-metal range.
The extra width of the 68mm blade makes it particularly effective for undercutting door frames and architraves to fit flooring, trimming excess from installed plasterboard sheets, and cutting through exposed plastic-cased wiring channels and surface conduit. For electricians surface-mounting trunking on a wall upgrade job, the 68mm blade trims the trunking to length and cuts outlet knockouts faster than a hacksaw.
At £27.99 for a pack of 5 (£5.60 per blade), the 68mm CRV is comparable in cost to the 44mm bi-metal pack, but trades metal-cutting capability for speed and width through wood-based materials. Tradespeople who work extensively with timber framing, MDF boarding, and plasterboard will find the 68mm CRV a fast, efficient option; those who regularly cut metal pipe or sheet steel should choose the bi-metal 44mm instead.
Also Available: 34mm Flush Cut Wood Blade CRV
The Faithfull 34mm flush cut wood blade (CRV, single blade, £6.50) sits between the 22mm and 44mm options. Useful for precision work in timber — cutting door-frame undercuts, scribing internal joinery, and trimming planed timber sections — where the 22mm is too narrow and the 44mm takes more material than necessary. Available individually, the 34mm suits joiners and carpenters who prioritise clean woodworking cuts over mixed-material cutting.
Choosing the Right Faithfull Oscillating Blade
The four main considerations when selecting an oscillating blade are width, material spec, quantity, and teeth profile:
- 22mm bi-metal: Tight spaces, confined voids, copper and plastic pipe, plasterboard in restricted access — ideal for electrical second-fix and plumbing alteration work
- 44mm bi-metal (5-pack): General trade use, mixed material cuts, timber and metal in the same application — the standard buy for electricians and plumbers on most jobs
- 68mm CRV (5-pack): Wide cuts through timber, plasterboard, and plastic — best for first-fix joinery, undercutting, and surface-mounted electrical work
- 12pc multi-function set: Starting out, covering all applications, or building a van backup stock — the most versatile entry point
Bi-metal blades handle metal, hardwood, and mixed materials; CRV blades cut faster through timber and plastic but are not designed for metal cutting. Choosing the correct spec prevents premature blunting and blade damage.
Stock at APM Electricals
All four Faithfull oscillating blade products are available online at apmi.uk with next-working-day delivery to mainland UK addresses. Trade customers can also visit or collect from the APM trade counter at 24 Western Avenue, London W3 7TZ. Call us on 020 8702 8080 or email info@apmi.uk to check counter availability. Faithfull products at APM are supplied through Toolbank, the UK's leading tool and fixings distributor, ensuring consistent stock and genuine product.
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