A chalk line set with 30 m (98 ft) of marking line and red chalk for durable, water-resistant lines. Permanent marking. A robust body. Also offered with blue chalk described as temporary.
Permanent is a commitment
On a flat roof, a concrete slab or an external wall, a temporary line is gone by the next shower and the setting-out has to be repeated. Permanent chalk is the correct answer there.
On plaster, on a finished floor, on anything that will be seen — the same chalk is a mistake you cannot undo. This is one of the very few consumables on this site where the wrong choice is not recoverable.
The convention worth following
Blue and white for inside, red for outside. It is not universal across brands, but it is common enough that reaching for the red reel indoors should feel wrong.
Availability
Catalogued and unsold: the American Amazon shop lists the reference with nobody behind it.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
What gets asked here
Permanent or temporary — how do I choose?
By where the line goes. Permanent chalk survives rain on a roof or a slab, and it also survives being wrong on a finished wall. Temporary blue or white brushes and washes off, which is what interior work needs.
Can I change the chalk in a reel?
Yes, and it is worth having two reels rather than swapping — residue of the previous color stays in the case and on the line for a long time.
What does 150 g (5.3 oz) get me?
A great many lines. Chalk consumption is low; the reason to buy more is that a reel run dry mid-job snaps a faint line that has to be done twice.
The second slowest gearing on this shelf, chosen deliberately: a steel handle and a large hub for torque rather than turns.
Stated dimension or range
100 ft of heavy-duty braided line, stated to resist fraying and breaking over long distances. No line diameter appears
Functions
A 2:1 gear ratio, stated to rewind twice as fast as a traditional reel. It is the second slowest of the published ratios on this shelf — against 6:1, 5:1, 4:1 and 3:1 above it and 1:1 below — and that is the trade the rest of the specification explains
Body and fittings
A robust steel handle and a large center hub, stated for increased durability, strength and torque, plus a steel docking ring for secure anchoring. It is the only reel on this shelf with steel named for both the handle and the ring
Material
Steel handle and steel docking ring, stated. The shell material is not named
Reference and mounting
A steel docking ring for secure anchoring, stated — a ring rather than a hook, which takes a nail or a screw rather than hooking an edge
Supplied
A large sliding door for easy chalk fill, stated, and a large chalk capacity for fewer refills on large jobs. No chalk is stated as included, and no sealing organ is described
Amazon reference
B0C31WBF5F
EAN
0885911819244
A steel handle, where most reels here are plastic
A steel docking ring rather than a bent hook
2:1, the second slowest ratio published on this shelf
Best for: Heavy chalk, a long line and a reel that will be cranked hard rather than quickly
Thirty feet rather than a hundred, which is the point: a reel sized for a tool belt and finishing work, with the chalk in the box.
Stated dimension or range
30 ft of line — the shortest on this shelf by a factor of three, where five reels run 100 ft and one runs 150. That is the product, not a shortcoming: a 30 ft reel is a third of the bulk
Functions
A 3:1 gear ratio, stated to give three times faster line retraction. On 30 ft of line that is about twelve turns of the handle for a full rewind
Reference and mounting
Nested hook storage, stated to give compact storage without unwanted hook snagging AND the ability to grab the hook with gloves on. That second half is the useful one: a hook recessed so far it cannot be pinched with a gloved hand is a hook you remove a glove for, in February
Body and fittings
A wide chalk door, stated for ease of fill and for visibility into the reel. It is the nearest thing on this shelf to the chalk level window one reel here publishes, and it needs the door opened
Supplied
Blue chalk included, stated. Blue is the removable color: it brushes off finished surfaces where red does not, which is what makes this a finishing reel
Also stated
No sealing organ and no line diameter. Compact size, stated for increased portability and easy storage
Amazon reference
B0C5G7FNHW
EAN
0885911922708
Nine dollars seventy, the cheapest geared reel here
3:1 on a short line, so a rewind is a dozen turns
Thirty feet will not cross a room diagonally
Best for: Finishing work indoors, where thirty feet reaches everything and the reel lives in a belt
The clearest statement of its two faces on this shelf: tenths one side, inches the other, and no claim that either is inverted.
Scale
Graduations on BOTH sides: front in feet and tenths, back in feet and inches — stated exactly that way, and it is the clearest statement of its two faces on this shelf. Note what it does NOT claim: the back is a different UNIT, not an inverted direction. This shelf's introduction distinguishes those two kinds of second scale, and four listings here blur them
Body and fittings
Five telescoping sections reaching 16 ft, with injection-molded sectional joints and high-strength locking buttons stated for extra stability. This shelf's buying tip says to check that every section locks positively; this is one of three rods here that names the locking mechanism at all
Stated dimension or range
16 ft extended, collapsing to 4 ft. Both figures are published — and four feet is the longest fold of the three 16 ft rods on this shelf, where another folds to 42 in
Material
Anodized aluminum sections imprinted with weather and corrosion-resistant inks, stated lightweight aluminum alloy. No thickness figure and no alloy designation appears
Measuring mode
A bubble level, stated in the title. No tripod thread and no receiver clamp
Supplied
Nothing beyond the rod is stated — no bag, no strap, no end caps and no spare parts, where four rods on this shelf include a case
Amazon reference
B07VC69SYK
EAN
0782337439530
Front and back faces stated plainly: tenths one side, inches the other
Both extended and folded lengths published
Folds to 4 ft, the longest fold of the three 16 ft rods here
Best for: Working with an engineer's level in tenths and a tape in inches, without converting either
The only rod here that is not telescopic and the only one with a target printed on it — a grade rod that lives in a pocket.
Body and fittings
NOT TELESCOPIC. A nylon-coated blade packed in a case like a tape measure, with a heavy-duty end hook. There are no sections and therefore no locking buttons and no creep — which removes the entire failure this shelf's buying tip warns about, at the price of reaching only 6 ft 6 in
Reference and mounting
A BUILT-IN TARGET on two sides, stated. It is the only target on this shelf, and it is the nearest any rod here comes to the receiver question this shelf's introduction asks: a target is the high-contrast pattern an optical level or a receiver is sighted on, and printing one on the blade means nothing has to be clamped to the rod
Scale
Feet and tenths, printed on both sides, stated vertical-reading. Tenths is the engineer's scale, read directly against a level without conversion
Material
A nylon-coated facing, stated not affected by moisture, with a non-glare surface. Non-glare is the detail that matters on a sunlit site: a glossy blade read through a level at twenty meters becomes a white stripe
Stated dimension or range
6 ft 6 in — the shortest on this shelf, where the telescopic rods run 9 to 16 ft. It is also packed, in Keson's words, compact like a tape measure
Supplied
The rod. Stated ideal for foundation work, grading, swimming pools and construction photo records
Amazon reference
B000KL6LNO
EAN
0052837005208
No sections, so no creep and nothing to lock
A built-in target on two sides, unique on this shelf
Six feet six inches, far the shortest reach on this shelf
Best for: Checking a grade without fetching a full-size rod — foundations, pools, drainage and photo records
