Starter set · 24 bits
KOWOOD 24-piece T-shape set, 1/4 in shank
The same five bullets as the 15-piece set, nine bits more — and a title that says 24A.
Specifications
- Shank
- 1/4 in — 6.35 mm, stated to give greater stability and less vibration
- Quantity
- The title says "Sets of 24A Pieces"; the fifth feature says "Includes 24 Pieces" · None of the twenty-four is named or dimensioned
- Carbide grade
- Not published by the maker. · An alloy blade on a hardened steel body is stated
- Geometry
- An anti-kickback design, stated
- Case
- A wooden case, stated to protect the bits between jobs
- Materials
- Wood, MDF, particle board, plywood and compact panel · Stated explicitly not for ferrous metal or non-wood
- Shared text
- The five published features are identical, word for word, to the maker's 15-piece set on this shelf
- Part number
- Y-134
- Amazon reference
- B07Q9Q7735
- EAN
- 0603977701200
Every figure below names its source. Each one is a manufacturer
specification read off the listing itself. The judgments are ours.
Twenty-four A
The title: Router Bits Sets of 24A Pieces 1/4 Inch Shank Router Bit Set T Shape.
The fifth feature: Includes 24 Pieces 1/4 Inch Shank Router Bit Set.
Twenty-four A is not a quantity in any system. The likeliest reading is a variant
code — an A version of a 24-piece set — that has ended up inside the count.
Both are above. The bullet is the one with a plain number in it.
And T Shape appears once
In the title, and in none of the five features.
A T-shape in router bits usually means a T-slot or keyhole cutter: a bit that
cuts a wider slot below a narrow entry, for sliding hardware and for hanging.
If one is in this set it is a genuinely useful inclusion, because a T-slot
cutter is hard to improvise. If the phrase is a search term, it is the only
clue this page gives about its contents.
Nine more bits, same five bullets
The maker’s 15-piece set on this shelf publishes the identical five features in
the identical order.
So the whole of the difference between the two pages is a number, and neither
names a bit.
The published ENT page on the European half of this shelf gives the arithmetic
that applies to both: sets are priced by quantity, so the profiles you never use
subsidize the four you do. Nine extra bits that stay in the case are nine extra
bits of value in the case.
Shank before everything
A router bit is held by its shank, and the collet that holds it has one size.
A quarter of an inch is 6.35 mm (0.25 in). Eight millimeters is eight. A 1/4 in bit drops
loose in an 8 mm (0.31 in) collet and an 8 mm (0.31 in) bit will not enter a 1/4 in one — and a
collet is a precision clamp, not a hole: there is no ring, no bush and no adapter
that makes either fit the other safely.
Which is why the two halves of this shelf cannot be mixed. Every American listing
here is 1/4 in; every European one is 8 mm (0.31 in). The published Spetool page on this
shelf states the rule in one line, and it is the most useful sentence on the
shelf.
Availability
Read on the day this page was built: $46 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.
