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Marking gauge · wheel

Clarke Brothers RIV001 wheel marking gauge

A wheel severs the fibers where a pin tears them — which is the complaint the published gauge on this shelf already carries.

Clarke Brothers wheel marking gauge in brass and steel with spare cutters, product photograph

Clarke Brothers RIV001 wheel marking gauge

A wheel severs the fibers where a pin tears them — which is the complaint the published gauge on this shelf already carries.

Cutter
A hardened steel wheel · Two spare wheel cutters supplied
Bar
Graduated to 6 in and 150 mm (5.91 in), laser engraved, in both systems
Overall length
8 in — 203 mm
Fence
A roll-stop fence with a flat spot, stated patent pending, so the gauge does not roll off the bench · A non-marring brass face
Materials
Solid brass, steel and aluminum alloy, stated corrosion resistant
Operation
Stated one-handed and balanced
Part number
RIV001
Amazon reference
B07FWS5T1L
EAN
0670875893429
  • A wheel cuts the fibers where a pin tears them across the grain
  • Two spare cutters, which a wheel needs and a pin does not
  • A wheel leaves a line that cannot be erased

Best for: Tenon shoulders, mortice walls and dovetail baselines, marked once and cut to

≈ $25
Check price on Amazon

Specifications

Cutter
A hardened steel wheel · Two spare wheel cutters supplied
Bar
Graduated to 6 in and 150 mm (5.91 in), laser engraved, in both systems
Overall length
8 in — 203 mm
Fence
A roll-stop fence with a flat spot, stated patent pending, so the gauge does not roll off the bench · A non-marring brass face
Materials
Solid brass, steel and aluminum alloy, stated corrosion resistant
Operation
Stated one-handed and balanced
Part number
RIV001
Amazon reference
B07FWS5T1L
EAN
0670875893429

Every figure below names its source. Each one is a manufacturer specification read off the listing itself. The judgments are ours.

A wheel, not a pin

The published Stubai double gauge on this shelf is a pin gauge, and its own page carries the argument against it: a pin tears across the grain where a knife or a wheel would sever cleanly.

A pin pushed across the fibers drags them instead of cutting, so the line wanders into the grain — and a chisel dropped into that line follows the wander.

A wheel is a tiny circular knife. It severs.

What the pin keeps is permanence: it never needs sharpening. Which is why this listing supplies two spare wheels and the pin gauge supplies none.

A flat on a round fence

A wheel gauge has a round fence so it can register on a curve as well as a flat.

A round fence on a bench rolls. Off the edge, onto the floor, and the wheel is what lands.

A machined flat on the circumference holds it still. It costs two minutes at the factory, it is the only one on either half of this shelf, and the listing calls it patent pending.

Six inches, graduated, both ways

Which turns the gauge from a transferred setting into a recoverable one.

A traditional gauge is set against the work or against a rule and tightened — accurate, and gone six months later. A graduated bar means a mortice set at 9 mm (0.35 in) is set at 9 mm (0.35 in) again next year.

The published Stubai page here is praised for the same thing: a millimeter scale on the beam, which most traditional gauges omit.

And the line is permanent

A knife or a wheel line cuts into the surface. A pencil line can be erased; this cannot.

The published Kirschen marking knife page on this shelf says it plainly in its cons: mark wrongly and it shows in the finish.

That is the price of a line a chisel can drop into, and it is the right price to pay on a shoulder that has to fit.

Availability

Read on the day this page was built: $25 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.

What comes up most often

Wheel or pin?

A wheel, for anything cut to a line. The published Stubai double gauge on this shelf is a pin gauge and its own page carries the reason: a pin tears across the grain where a knife or a wheel would sever cleanly. A pin pushed across the fibers drags them rather than cutting, so the line wanders into the grain and a chisel follows it. A wheel is a tiny circular knife and severs. What a pin keeps is durability — it never needs sharpening, which is why this listing includes two spares and the pin gauge includes none.

What is the flat spot for?

Stopping the gauge rolling. A wheel gauge has a round fence because a round fence registers on a curve as well as a flat, and a round fence on a bench rolls — off the edge, onto the floor, and the wheel is what lands. A machined flat on the circumference holds it still. It is a two-minute change at the factory and the only one of its kind on either half of this shelf, and the listing calls it patent pending, which says somebody thought it was worth owning.

Why does a graduated bar matter?

Because it turns the gauge into a repeatable setting rather than a transferred one. A traditional gauge is set by holding it against the work or against a rule and tightening the thumbscrew — accurate, and not recoverable six months later. A bar graduated to 6 inches and 150 mm (5.91 in) means a mortice set at 9 mm (0.35 in) can be set at 9 mm (0.35 in) again. The published Stubai page on this shelf is praised for exactly this: a millimeter scale on the beam, which most traditional gauges omit.

More measuring & marking

  • Magnetic digital angle gauge with V-grooved base, product photograph

    XUNTOP XOPXOP039 digital angle gauge

    Seventeen euros to stop trusting the scale printed on the saw — provided you read the accuracy figure and not the resolution.

    Range
    4 × 90°
    Accuracy
    ±0.2°
    Resolution
    0.05°
    Base
    Magnetic, with a V groove
    Display
    VA, rotates automatically
    Battery
    3.7 V, 260 mAh, USB-C charging
    Sealing
    IP54
    Part number
    XOPXOP039
    Availability
    No EAN published — other markets could not be verified
    Amazon reference
    B0G1YDKLT5
    • A V-grooved magnetic base sits on a blade or a round column without sliding
    • USB-C charging rather than a coin cell that dies unnoticed
    • The display shows 0.05° while the instrument is accurate to ±0.2° — four times coarser

    Best for: Setting the bevel on a mitre saw or table saw without believing the printed scale

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  • Draxzor three woodworking rules with sliding stop blocks, product photograph

    DRAXZOR 3-piece rule set with stops, 6, 8, 12 in

    Three rules with stops on them — which is a marking gauge wearing a rule, and the only one on this shelf.

    Lengths
    Three: 6, 8 and 12 in — 152, 203 and 305 mm (12 in)
    Stops
    A sliding stop block on each rule, stated to glide smoothly and lock securely — the only rules with stops on either half of this shelf
    Graduations
    Laser-etched, inches on one face and millimeters on the other
    Scale origin
    Not published by the maker.
    Thickness
    Not published by the maker.
    Material
    Aluminum alloy, CNC machined and anodized, stated rust and corrosion resistant
    Quantity
    3 rules
    Part number
    Not published by the maker.
    Amazon reference
    B0F8HQ1833
    EAN
    0767738879529
    • A locking stop on every rule, which turns a measurement into a repeatable setting
    • Three lengths, so the stop is available at the scale the work needs
    • No scale origin published, where the Mr. Pen rules on this shelf state theirs

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  • FastCap ProCarpenter reverse reading tape measure with notepad, product photograph

    FastCap PSSR16 ProCarpenter reverse tape, 16 ft

    The only tape measure on this shelf — and it reads the right way up whichever hand is holding it.

    Length
    16 ft — 4.88 m
    Scale
    Standard and standard reverse: readable when extended from either the right or the left hand — the only reverse scale on this shelf
    Graduations
    Fractions to 1/16 in, stated easy-read
    Blade
    1 in wide, with a four-rivet nose clip
    Sharpener
    A pencil sharpener built into the case
    Notepad
    An erasable notepad on the case
    Protection
    A rubber boot
    Part number
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    Amazon reference
    B0001GUE3G
    EAN
    0300716033645
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    • A pencil sharpener in the case, so the marking tool is where the measuring tool is
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Elsewhere in the workroom

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    VENTUX SAFETY EQUIPMENT FFP3 NR, headband, 20 individually wrapped

    The same filter class as a valved mask, and the version to choose when someone else shares the workshop.

    Filter class
    FFP3, ≥ 99% filtration
    Valve
    None
    Standard
    EN 149:2001+A1:2009
    Straps
    Headband
    Construction
    Five layers with a meltblown filter
    Quantity
    20, individually wrapped
    Amazon reference
    B0CYMH5X4W (identical on 5 markets)
    EAN
    8057500165090
    • FFP3 — the class hardwood dust warrants
    • Head straps rather than ear loops, which is what holds a seal during physical work
    • No valve, so exhaled air passes back through the filter and the mask gets hot

    Best for: A shared workshop, where the people around you need protecting as much as you do

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  • Woven replacement filter bag for a chip extractor, product photograph

    BAMATO AB2530FS filter bag, Ø 500 mm

    A filter bag is a wear part, and a 500 mm (19.7 in) clamping ring is common enough that this one fits more machines than its own.

    Diameter
    500 mm (19.7 in)
    Height
    About 850 mm (33.5 in)
    Material
    Woven filter fabric
    Fitting
    500 mm (19.7 in) clamping ring, no tools needed
    Intended machine
    BAMATO AB-2530
    Part number
    Not published
    Amazon reference
    B096M69YK3 (identical on 2 markets)
    EAN
    4260537612527
    • A 500 mm (19.7 in) ring is a common size, and the maker states it suits other machines built the same way
    • Woven fabric rather than plain cotton, so it survives repeated shaking out
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  • Fightech reusable carbon filter dust mask, product photograph

    FIGHTECH Carbon filter dust mask, large

    The only filtration efficiency on either half of this shelf, with the laboratory named — and no filter class.

    Filter class
    Not published by the maker. · No N95, R95, P100 or FFP designation appears
    Filtration efficiency
    99.941 per cent average, published, with particulate caught down to 0.1 micron · Stated tested at Nelson Laboratories, USA — the only efficiency figure and the only laboratory on either half of this shelf
    Filter type
    Active carbon, included, stated interchangeable and reusable along with the exhaust valves
    Stated limit
    Non-toxic dust, fumes, common airborne irritants and other non-oil-based particles · Stated for non-oil-based paint only
    Straps
    An adjustable upper strap with internal silicone grip lines, stated to prevent slipping
    Sizes
    The title says 2 sizes and names Large; a feature says it comes in 3 sizes
    Body
    Elastic material, adjustable, stated to fit most head types
    Part number
    850025430944
    Amazon reference
    B0DZJ3QGBT
    EAN
    0850025430944
    • Publishes an efficiency figure to three decimal places and names the laboratory
    • States what it is not for — oil-based particles — which a class letter also implies
    • No filter class, which is what the shelf compares respirators on

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All measuring & marking