In 1862, when most mills were turning out bulk iron, Göran Fredrik Göransson was solving a different problem in Sweden. His mill needed to make steel that was hard enough to cut but tough enough not to break. The breakthrough came when they perfected a process for refining steel into milled wire — strong, consistent, and ideal for precision applications.
The first test case? Fishhooks. A hook has to be sharp enough to penetrate, strong enough to hold, and flexible enough not to snap under load. Get the metallurgy wrong and it fails on the first fish. Göransson’s steel passed every test.
By 1886, the same mill was making saw blades. They needed a trademark that would communicate quality to craftsmen who knew steel. The choice was obvious: stamp a fish and hook on every blade. That symbol became Bahco — and 140 years later, old fitters still ask for “the saw with the little fish.”
The Metallurgy Behind the Performance
What made that 19th-century Swedish steel special is the same thing that makes modern Bahco files cut truer and last longer: controlled carbon content and grain structure.
A file is essentially thousands of tiny cutting edges. Each tooth needs to be hard enough to bite into steel but not so brittle that it chips or rounds off after a few passes. The steel underneath has to support those cutting edges without flexing or work-hardening under pressure.
Most budget files fail because the base steel can’t maintain its properties under load. The teeth start sharp but dull quickly as the supporting material deforms. Bahco files hold their cut because the metallurgy was right from the start — same principle Göransson worked out for fishhooks 160 years ago.
Why We Stock Bahco Files
At Wallace Heron, we’ve been in the trade tool business since 1957. We stock what works on the bench, not what works in the marketing department.
Bahco files work. When you’re deburring hardened steel, sharpening a hand saw, or cleaning up threads on a critical component, you need the file to cut consistently from the first stroke to the last. That’s metallurgy, not marketing.
Here’s what we keep on the shelf:
Heavy Stock Removal: Bastard Cut Files
Bahco 12″ Square Bastard File (12SB) — $40.60 When you need to remove metal fast. The coarse bastard cut and 12″ length give you the aggressive bite and stroke length for serious stock removal. Engineers use these for deburring thick plate, millwrights for shaft repair work.
Bahco 10″ Round Bastard File (10RB) — $26.33 Enlarging holes, shaping curves, heavy work on round stock. The bastard cut removes material quickly without loading up the teeth.
Precision Work: 2nd Cut Files
Bahco 6″ Triangular 2nd Cut File (06TS2) — $27.69 The workhorse of saw sharpening. Three flat faces at 60° angles — perfect for getting into the gullets of crosscut saws. Mechanics also use these for deburring internal corners and cleaning up damaged threads.
Bahco 10″ Round 2nd Cut File (10R2) — $28.27 Truing round holes, smoothing inside curves, finishing work on shafts. The 2nd cut leaves a clean enough surface that you can often skip the emery cloth.
Bahco 8″ Three Square 2nd Cut File (08TS2) — $29.43 Internal angles, splines, keyways — anywhere a square or round file won’t reach. Agricultural mechanics know this one for gear teeth and PTO splines.
Bahco 6″ Square 2nd Cut File (06S2) — $20.41 Internal corners, cleaning up mill work, truing slots. The 2nd cut gives you control for precision fitting.
Specialty Applications
Bahco 6″ Slim Taper Saw File (TSF06) — $17.43 Purpose-built for sharpening saw teeth. The taper matches the gullet profile, and the slim profile works with finer TPI blades. Mechanics use these for broken tap removal — the taper gets into tight spots.
Bahco 6″ Warding 2nd Cut File (06W2) — $5.95 Thin, parallel-sided file for narrow slots, keyways, and anywhere you need to file in a restricted space.
The 140-Year Test
In an era when most tools are designed to be replaced, Bahco files are designed to work. The same attention to steel quality that made Swedish fishhooks legendary in the 1800s goes into every file that comes off the line today.
We don’t just sell tools at Wallace Heron — we use them. When our own fitters reach for a file, it’s usually got that little fish stamped on the tang. After 140 years, some things don’t need improvement.
Shop our complete range of Bahco files online or visit our Pukekohe showroom. We stock what works.
About the Bahco 140th Anniversary Bahco is celebrating 140 years with a giveaway running until December 11, 2026. Any Bahco purchase qualifies for entry to win a limited edition 216-piece tool trolley or one of 140 98-piece socket sets. Details at bahco.com/nz_en/140-anniversary.
Wallace Heron has been serving New Zealand’s trade and industrial communities since 1957. Based in Pukekohe, we supply welding equipment, power tools, hand tools, and industrial supplies to professionals who demand quality and reliability.
Contact us:
- Phone: 09 238 3281
- Email: sales@wallaceheron.co.nz
- Web: wallaceheron.co.nz
- Visit: Pukekohe showroom
Related: Bahco Brand Story | Hand Tools Category | Files & Rasps
