Starter set · 24 bits · YG8
Hiltex 10108, 24-piece set, 1/4 in shank
The only YG8 carbide on this shelf, in the only case with a label in every slot.
Every figure below names its source. Each one is a manufacturer
specification read off the listing itself. The judgments are ours.
A label in every slot
The only labeled case on either half of this shelf, and it is the reason to
prefer this set.
A 24-piece set is unusable without one. Router bits are short, dark and similar,
and a 1/4 inch roundover is indistinguishable from a 5/16 in a tray — so the set
goes back in the wrong order and within a year nothing can be found.
A slot with a label keeps a set a set.
The published Rockler adapter set in this catalog solves the same problem with
color, and its page says the same thing in its own words.
YG8
A specific grade, which is more than a classification band.
YG8 is a Chinese designation — roughly eight per cent cobalt binder in tungsten
carbide, which puts it among the tougher, more impact-resistant grades. It is not
directly comparable with the C2 and C3 bands the other listings here publish;
the rough correspondence is that it sits nearer C2.
Four listings on this shelf name a grade, and three different systems appear in
those four. This is the only YG8.
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.
Select bits have bearings
Which bits is not published.
It is true of every 24-piece set — flush trim, roundover, cove and rebate bits are
bearing guided; straight, V-groove and dovetail bits are not. Because the
contents are not listed, neither is the subset.
So the number of bearing-guided profiles, which is what decides whether curves
can be worked at all, is unknown until the box is opened.
Powder coated
On the body, which is the half of a router bit that rusts.
A bit lives in a drawer in an unheated shop, and a bare steel body spots within a
winter. Powder coating is the cheap fix, and the published Akylin slot cutter on
the European half of this shelf is credited for the same thing: a rust-inhibiting
coating on the body, which matters on a tool that sits in a drawer.
Availability
Read on the day this page was built: $44 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.
