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Hose · 100 mm (3.94 in)

Miko Ø 100 mm extraction hose, 2.5 m

The hose is what limits most extraction systems, not the machine. Getting the diameter right matters more than getting the extractor right.

Transparent 100 mm dust extraction hose, product photograph

Miko Ø 100 mm extraction hose, 2.5 m

The hose is what limits most extraction systems, not the machine. Getting the diameter right matters more than getting the extractor right.

Diameter
100 mm (3.94 in)
Length
2.5 m (8 ft)
Wall
Transparent
Amazon reference
B07Y3Q9TPB (identical on 3 markets)
EAN
4260289832471
  • 100 mm (3.94 in) matches the ports on planers, table saws and band saws
  • Transparent, so a blockage is visible instead of guessed at
  • Not sold in Britain, France or the United States

Best for: Connecting a chip collector to a 100 mm (3.94 in) machine port

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Specifications

Diameter
100 mm (3.94 in)
Length
2.5 m (8 ft)
Wall
Transparent
Amazon reference
B07Y3Q9TPB (identical on 3 markets)
EAN
4260289832471

Every figure below is a manufacturer specification read off the listing itself. The judgments are ours.

What the specification says

Ø 100 mm (3.94 in), 2.5 m (8 ft), transparent wall.

Keep it short and straight

Every meter of corrugated hose and every bend costs airflow. A 2.5 m (8 ft) run straight from the machine to the collector performs measurably better than five meters coiled behind a bench, with the same extractor at the end of it.

Saws this fits

What comes up most often

Why does hose diameter matter so much?

Because flow through a duct falls sharply as diameter drops. Reducing a 100 mm (3.94 in) port to a 50 mm (1.97 in) hose leaves a small fraction of the airflow, and a chip collector fed that way can collect less than a workshop vacuum would. Match the hose to the port and keep the run short.

Is transparent hose worth it?

Yes, for one reason: blockages. An offcut wedged in an opaque hose presents as "the extractor has got weaker", which people diagnose as a full bag or a clogged filter. A transparent wall turns a twenty-minute mystery into a five-second look.

More extraction fittings

  • POWERTEC 70123V dust hose connector, product photograph

    POWERTEC 70123V hose connector

    The part that makes two short hoses into one long one — tapered at both ends so it goes in without a fight.

    Nominal size
    4 in, both ends
    Diameters
    3-31/32 in outer and 3-11/16 in inner — 100.8 and 93.7 mm (3.69 in), stated to accommodate all 4 in ID hoses
    Function
    A secure quick connection between two 4 in ID dust hoses, stated to extend the reach of a standard set-up
    Form
    Tapered ports at each end, with a raised middle section stated for easier assembly and grip
    Material
    ABS, stated for abrasion resistance and tensile strength
    Quantity
    1 connector
    Part number
    70123V
    Amazon reference
    B09VXHYDV1
    EAN
    0843441114000
    • Publishes both diameters, which the European half of this shelf does not
    • Tapered at both ends, so a cold hose goes on without heating it
    • Joins hose to hose only — it will not fit a machine port

    Best for: Extending a four-inch hose, or repairing one that has split in the middle

    ≈ $10
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  • POWERTEC 70125 pipe to hose dust adapters, pair, product photograph

    POWERTEC 70125-P2 pipe-to-hose adapter, 2 pack

    The one fitting on this shelf that publishes all four of its diameters — which is the whole of what a nominal size hides.

    Nominal size
    4 in
    Narrow end
    4 in outer diameter and 3-49/64 in inner — 101.6 and 95.6 mm (3.76 in), stated to fit inside a 4 in ID hose
    Large end
    4-7/32 in outer diameter and 3-31/32 in inner — 107.2 and 100.8 mm (3.97 in), stated to fit over a 4 in OD port or fitting
    Function
    Pipe to hose, stated to make switching from one machine to another quick · Stated for use with Y-pieces, T-pieces, elbows and blast gates
    Material
    Non-threaded all-black ABS
    Quantity
    2 adapters
    Part number
    70125-P2
    Amazon reference
    B0B8SFNDGP
    EAN
    0843441119586
    • Publishes four diameters, which no other fitting on either half of this shelf does
    • One male end and one female end, so it joins a hose to a port rather than a hose to a hose
    • No wall thickness, where the Taytools Y on this shelf publishes 1/8 in

    Best for: Joining a 4 inch duct run to a 4 inch flexible hose, at every machine in a ducted shop

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  • POWERTEC 70150 rectangular dust hood in black ABS, product photograph

    POWERTEC 70150 rectangular dust hood

    The part that turns a hose into a mouth — with a published mouth size and four holes already in it.

    Mouth size
    4-1/4 × 7 in, published — 108 × 178 mm (4.25 × 7.01 in)
    Spigot
    4 in nominal, measuring 3-31/32 in outer and 3-39/64 in inner — 100.8 and 91.7 mm (3.61 in) · For use with 4 in ID hose or an adapter
    Mounting
    Four pre-drilled holes, stated for quick mounting — the only pre-drilled fitting on this shelf
    Material
    Non-threaded all-black ABS
    Stated use
    Collecting dust from an assortment of systems, or placed on a nearby surface close to where dust is produced
    Quantity
    1 hood
    Part number
    70150
    Amazon reference
    B00M3JFNOO
    EAN
    0736815006011
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    Best for: Screwing behind a router table fence, a lathe bed or a disc sander, where a round hose will not sit

    ≈ $11
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Elsewhere in the workroom

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    A named impact standard, two coatings and a lifetime warranty — on glasses whose comparison figures name nothing to compare with.

    Standard
    ANSI Z87 certified, stated — one of three standards named on the American half of this shelf
    Lens
    Polycarbonate, wraparound, stated to protect from direct and peripheral threats
    Coatings
    Anti-fog and scratch resistant · Stated 5 times more fog resistant and 2 times more scratch resistant than most clear protective glasses — no product and no test is named
    UV
    100 per cent UV radiation blocked, stated
    Fit
    Extendable arms, an adjustable soft nose pad and non-slip rubber grips
    Warranty
    A lifetime warranty, stated, with replacement or refund — the only lifetime warranty on either half of this shelf
    Part number
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    Amazon reference
    B07GB8Y11G
    EAN
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  • Set of four one-handed bar clamps, product photograph

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    Quantity
    4 — two large, two small
    Clamping force
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    Clamping range
    85–345 mm (3.35 to 13.6 in)
    Gripping range
    Under 150 mm (5.91 in)
    Material
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    Jaws
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    Function
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    Part number
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    Amazon reference
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    EAN
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    A bi-metal blade for reclaimed timber: it survives the nail that destroys a carbon-steel blade.

    Length
    1,790 mm (70.5 in)
    Width
    13 mm (0.51 in)
    Thickness
    0.90 mm (0.04 in)
    Pitch
    6 teeth per inch
    Material
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    Availability
    No EAN published — other markets could not be verified
    Amazon reference
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All extraction fittings