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Same seven designations as the kit below it — same typo too

VERFUTHL SDNCN12120H07, 21-piece 12 mm kit

A seven-holder kit whose designation list, including a misspelled holder code, matches another brand’s kit on this shelf exactly.

VERFUTHL 21-piece indexable lathe turning kit with holders and inserts

VERFUTHL SDNCN12120H07, 21-piece 12 mm kit

A seven-holder kit whose designation list, including a misspelled holder code, matches another brand’s kit on this shelf exactly.

Amazon reference
B0H3H5TFD7
EAN
0786731198116
  • Names all seven holder designations, so inserts and replacements can be identified
  • Fourteen inserts for seven holders — a spare edge for each
  • Its own contents add to twenty-nine — seven holders, fourteen inserts, eight wrenches — under a "21Pcs" heading

Best for: A 12 mm (0.47 in) tool post, where fourteen inserts and eight wrenches matter more than the brand

≈ $37
Check price on Amazon

Specifications

Amazon reference
B0H3H5TFD7
EAN
0786731198116

Seven holders, fourteen inserts, eight wrenches, a 12 mm (0.47 in) shank and 40Cr alloy steel: on the face of it a well-equipped kit, and the alloy is correctly named rather than being called cemented carbide as it is on three other pages here. Fourteen inserts for seven holders means a spare edge for each, which is the difference between a chipped insert and a stopped job.

Two things about the page are worth more than its specification. The contents bullet adds up to twenty-nine items under a heading that says twenty-one — seven plus fourteen plus eight — which is reconcilable if the headline ignores the wrenches. And one of the seven holder codes it lists, SDNCN12120H07, is not a valid designation: ISO codes carry four digits for a 12 by 12 mm (0.47 in) shank, not five. The real holder is an SDNCN1212H07.

The reason that matters is what else carries it. The LYMMIYTC kit further down this shelf lists the same seven designations in a different order, including the identical five-digit error, and has the same twenty-one-versus-twenty-nine arithmetic. Here, the misspelled code is also the listing’s own manufacturer reference. Neither page mentions the other, and nothing on either says who made what.

Availability

Read on the day this page was built: $37 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.

The questions welders ask

Twenty-one pieces or twenty-nine?

The contents bullet lists seven holders, fourteen inserts and eight wrenches, which is twenty-nine items, under a title that says 21Pcs. The likeliest reading is that the headline counts holders and inserts and ignores the wrenches — twenty-one exactly. It is worth saying because the same discrepancy, in the same form, appears on the LYMMIYTC kit further down this shelf.

What is wrong with SDNCN12120H07?

A digit. ISO holder codes are structured: SDNCN is the clamping and shape, then the shank in millimeters — 1212 for 12 by 12 — then the length class and the insert size, H07. SDNCN12120H07 has five digits where four belong, so it does not resolve to a real holder. SDNCN1212H07 does, and it is almost certainly what is in the box. The reason to point it out is that the same misspelling appears on another brand’s kit on this shelf and is this listing’s own reference number.

More lathe tooling

  • ZiBeiLe 21-piece indexable lathe turning tool kit with holders and inserts

    ZiBeiLe A22-WTD-CEF314, 21-piece 12 mm kit

    A seven-holder kit that names every designation and then claims its holders are made of cemented carbide — which at this price nothing on this shelf is.

    Amazon reference
    B0CPYKPBNJ
    EAN
    0770701686314
    • Names all seven holder designations, including a threading holder and a grooving holder
    • Fourteen CVD-coated inserts for seven holders — a spare edge each
    • Claims the holders are "crafted from industrial-grade cemented carbide and tungsten steel", which no holder on this shelf is

    Best for: A 12 mm (0.47 in) tool post needing a full spread of operations with spare insert edges

    ≈ $40
    Check price on Amazon
  • MIRTHBUY 10 × 10 mm turning tool holders with carbide inserts, product photograph

    MIRTHBUY 10 × 10 mm turning tool holders with carbide inserts

    The cheapest indexable tooling here at €37 — a way to find out whether indexable suits your lathe.

    Shank
    10 × 10 mm (0.39 × 0.39 in)
    Type
    Holders with carbide inserts
    Amazon reference
    B08M41CJ2N
    EAN
    8711468101858
    • €37 to try indexable tooling rather than committing to a full set
    • 10 × 10 mm (0.39 × 0.39 in) suits the small lathes on this site
    • Cheap inserts vary in edge preparation, which shows in the finish

    Best for: A first experiment with indexable tooling on a modelmaking lathe

    Search Amazon for this model
  • Donken 10 mm indexable turning tool set, 21 pieces, product photograph

    Donken 10 mm indexable turning tool set, 21 pieces

    Indexable tooling for a small lathe: when an edge dulls you turn the insert rather than grind a tool.

    Shank
    10 mm (0.39 in)
    Quantity
    21 pieces
    Type
    Indexable holders with carbide inserts
    Amazon reference
    B09GKGCP6B
    EAN
    6226126800919
    • Indexable inserts: rotate to a fresh edge instead of regrinding a tool
    • 10 mm (0.39 in) shank suits small bench lathes and modelmaking machines
    • Verified on the German store only at the time of checking

    Best for: A first tooling set for a small lathe, bought with the machine

    Search Amazon for this model

Elsewhere in the workroom

  • BIG RED ER70S-6 solid MIG welding wire on an eleven-pound spool

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    The same AWS classification as six other wires on this shelf, in the same diameter and the same spool weight, at less than half the price of the most expensive.

    Amazon reference
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    EAN
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    Best for: General steel fabrication from 2 mm (0.08 in) upwards, bought on price with the classification understood

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    Amazon reference
    B00F429W7G
    EAN
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    Best for: Work that will be inspected, or castings and forging salvage where the deposit has to be sound

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    The finest wire in this hub by a clear margin — the 0.6 mm (0.02 in) class this shelf's buying tip says car-body sheet needs, and the only one of its size here.

    Amazon reference
    B089LVH45M
    EAN
    0760655019337
    • A 0.023 in diameter — the 0.6 mm (0.02 in) class — which is what this hub’s buying tip says the thin end of the range needs
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    Best for: Car-body panel and thin sheet, where a 0.8 mm (0.03 in) wire blows holes

    ≈ $41
    Check price on Amazon

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