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The Bandsaw Store

Bahco carbide range, UK stock

Carbide-tipped bandsaw blades

Tungsten carbide tips keep their hardness at temperatures that finish an HSS edge, which is what puts titanium, nickel alloys and hardened tool steels within a bandsaw's reach. Every band is welded to your machine's exact length.

Why carbide, in one property

Every tooth edge fails the same way: the tip runs hotter than its hardness can survive. Carbon steel gives up first, high speed steel holds on longer and tungsten carbide keeps its hardness far beyond the temperatures that stop an HSS edge. That one property is the whole case for the category. A carbide-tipped band keeps a true cutting edge in the alloys that defeat bi-metal blades: titanium, nickel-based high-temperature alloys, hardened and abrasive tool steels and demanding foundry work.

The construction pairs tungsten carbide tips with an alloy backing, and some blades carry a further coating for the hardest work. The backing flexes around the wheels; only the tips meet the material. None of it is cheap per blade, and it is not meant to be. On the right workpiece, carbide's cutting rate and edge life usually make it the cheaper option per cut, which is the only figure a production saw should care about. On the wrong workpiece a good bi-metal band does the job for less, and our bi-metal guide covers that territory.

Set or unset: how the tips are arranged

The first question a carbide tooth line answers is whether its tips are set. It is the main fork in the range, and it follows the work rather than the budget.

A set blade angles alternate tips outward from the band, the same way set works on a conventional tooth line. Those offset tips cut a kerf with clearance around the band, and that clearance is what carries the blade through interrupted cuts and mixed work: changing sections, varied materials and castings with gates and risers still attached.

An unset blade keeps every tip in line. Instead of offsetting tips to make clearance, a multi-chip design gives consecutive tips different profiles, so the cut is split across them in sequence and each tip removes its own share of the kerf. That sequence is what buys the better finish and longer life on production cutting of hard alloys, where the same difficult material crosses the saw for days at a time.

If the saw sees a different job every hour, set is the safer geometry. If it earns its keep on one hard alloy at volume, unset multi-chip repays the discipline.

Seen close up, the difference is plain: set tips lean out of line to cut clearance, unset tips stand in line and divide the cut by profile.

Set against unset carbide tooth lines. The tips are tungsten carbide either way; the arrangement decides the duty.
ConsiderationSet carbideUnset multi-chip carbide
How the tips sitAlternate tips are angled outward from the band, the same way set works on a conventional tooth line.Every tip stays in line with the band. Consecutive tips carry different profiles and share the cut in sequence.
Where the clearance comes fromThe outward set of the tips cuts a kerf with clearance around the band body.The sequence of tip profiles divides the kerf between tips instead of offsetting them.
The work it suitsInterrupted cuts and mixed work: changing sections, varied materials and foundry pieces with gates and risers.Production cutting of hard alloys, where finish and blade life decide the cost per cut.
In this rangeThe Triple Set and Multi Set families, for example the Carbide Triple Set TSX and the foundry pattern of the 3869.The Unset Carbide 3860 family: TMC, TCD, TCL and TCZ, with a coated TMC for titanium.

One blade in the category sits alongside both families: the Easy-Cut Xtreme EZX trimetal blade, aimed at structural and stainless steel, cast iron, high-temperature alloys and tool steel.

What carbide-tipped blades cut

The workpieces below come from the manufacturer's published range for this construction. The guidance is general: the alloy, its condition and the section size matter as much as the blade.

Typical carbide-tipped workpieces with general cutting guidance. Material names link to our dedicated guides where one exists.
MaterialCutting guidance
High-temperature alloysNickel-based grades hold their strength at exactly the temperatures a cut generates, and many work harden if a tip rubs instead of cutting. Keep the feed positive so every tip takes a real chip, run coolant generously and favour coarser pitches whose gullets carry heat away with the swarf.
TitaniumLow thermal conductivity concentrates heat at the tooth tip rather than in the chip, which is exactly where ordinary edges fail. Moderate band speed, positive feed and generous coolant keep the tips alive; unset multi-chip patterns are the production choice here.
Tool steelAnnealed grades saw respectably on premium bi-metal; hardened and high-carbide grades need carbide tips to cut rather than rub. Match the blade to the state of the steel, not just the grade, and break a new band in gently before applying full feed.
Cast ironThe hard skin and abrasive graphite structure blunt conventional teeth quickly; carbide tips cut through the skin cleanly. Interrupted casting faces favour a set tooth line for its clearance, and chilled or heavily scaled castings sit better with a grit edge.
High-silicon aluminiumSilicon-rich casting alloys wear edges like sandpaper while the soft aluminium around them packs gullets. Run a coarse pitch so the gullets keep clearing, keep the feed positive and keep the band clean so swarf never rides back into the cut.
Large or difficult sectionsA duty as much as a material: big solids and awkward workpieces that keep the band in the cut for a long time. Go coarser than instinct suggests so the teeth in the cut stay within the working rule, clamp rigidly and let a steady feed do the work.

Width and pitch on a carbide band

Width buys beam strength. A wider band deflects less under feed pressure, so a deep cut runs straighter and the machine can carry more feed without the cut wandering. This range carries published widths from 27 to 80mm, so check what your machine will tension properly before choosing: carbide rewards a rigid machine, positive feed control and correct band tension, and a tension meter takes the guesswork out of the last one.

Deep solid sections are where width pays: the band resists deflection and the cut stays true from the first contact to the last.

Pitch follows the section, not the material. The working rule of thumb is to keep between 4 and 24 teeth in the cut at any moment: fewer and each tip takes too heavy a bite, more and the gullets fill before they clear the kerf while the feed spreads so thin that tips rub instead of cutting. The published options across this range run 0.75/1.25, 1.4/2, 2/3, 3/4, 4/6, 5/8 and 6/10 TPI, and each product page lists which pitches its widths carry.

Coarser pitch
Finer pitch
Fewer, bigger teeth carry deep gullets for large solids; more teeth share the work on smaller sections. The pitches published for this range are variable, pairing coarser and finer spacing along the same band.

Two habits protect the investment: break a new band in gently before running at full feed, and follow the machine and blade guidance on band speed for the alloy being cut. If weighing all this feels like guesswork, the blade wizard asks three questions and applies the same rules for you.

The carbide-tipped range

14 Bahco blades across set, unset and trimetal constructions, with published widths from 27 to 80mm, every band welded to the length you order.

Shop all carbide-tipped blades

Frequently asked questions

Tell the blade wizard your material, section and machine and it will say straight out whether carbide or bi-metal is the right money.

Start the blade wizard