Chalk refills

Klein Tools Blue chalk refill, 8 oz, ultra-fine

Blue chalk sold as water-resistant and fade-resistant, which is the opposite of what the color convention promises.

Klein Tools eight-ounce bottle of blue marking chalk with fine-tip nozzle

Klein Tools Blue chalk refill, 8 oz, ultra-fine

Blue chalk sold as water-resistant and fade-resistant, which is the opposite of what the color convention promises.

Stated dimension or range: Eight ounces, at two dollars ninety-eight — about 37 cents an ounce. The other bottle on this shelf is two ounces for twenty dollars thirty-seven, which is ten dollars nineteen an ounce: the same shelf, the same powder, a factor of twenty-seven
Material: Ultra-fine powdered chalk, stated to dispense smoothly and give an even coating with enhanced color payoff. Fineness is one of the five things this shelf's introduction compares, and it decides how cleanly the line lays: a coarse chalk leaves a fuzzy band, a fine one a crisp edge
Also stated: SEMI-PERMANENT, fade-resistant under direct sunlight and water-resistant, "measuring in at 1 on the permanence scale" — all of that on BLUE chalk. This shelf's buying tip says to use blue indoors as a default and keep red for outdoors, because on most brands the color tells you which grade is in the bottle. This bottle is blue and sold as surviving sun and water
Supplied: A fine-tipped nozzle stated to slot into chalk reel openings, minimizing spills. Klein says it can be used with ALL chalk reels — which on a shelf where one reel maker ties its tool to its own branded chalk is worth having in writing
Functions: Stated high-visibility on drywall, concrete, stone, wood and plastic. Plastic is the unusual one on that list and it goes with the water resistance: a chalk that will not bleed is a chalk that marks a membrane or a pipe
Reference and mounting: The product reference recorded for this listing is T5169GKLE while the title and the description both read CHLK8B. Two codes for one bottle, and CHLK8B is the one that matches the 8-ounce blue product
Amazon reference: B0H382HFS2
EAN: 0092644770029

Thirty-seven cents an ounce, the cheapest chalk here by far
Eight ounces, which fills a reel many times
Blue chalk sold as semi-permanent, against the color convention

Best for: Lines on concrete, stone or plastic that must survive a damp week — not for a finished wall

≈ $3

Check price on Amazon

Specifications

Stated dimension or range: Eight ounces, at two dollars ninety-eight — about 37 cents an ounce. The other bottle on this shelf is two ounces for twenty dollars thirty-seven, which is ten dollars nineteen an ounce: the same shelf, the same powder, a factor of twenty-seven
Material: Ultra-fine powdered chalk, stated to dispense smoothly and give an even coating with enhanced color payoff. Fineness is one of the five things this shelf's introduction compares, and it decides how cleanly the line lays: a coarse chalk leaves a fuzzy band, a fine one a crisp edge
Also stated: SEMI-PERMANENT, fade-resistant under direct sunlight and water-resistant, "measuring in at 1 on the permanence scale" — all of that on BLUE chalk. This shelf's buying tip says to use blue indoors as a default and keep red for outdoors, because on most brands the color tells you which grade is in the bottle. This bottle is blue and sold as surviving sun and water
Supplied: A fine-tipped nozzle stated to slot into chalk reel openings, minimizing spills. Klein says it can be used with ALL chalk reels — which on a shelf where one reel maker ties its tool to its own branded chalk is worth having in writing
Functions: Stated high-visibility on drywall, concrete, stone, wood and plastic. Plastic is the unusual one on that list and it goes with the water resistance: a chalk that will not bleed is a chalk that marks a membrane or a pipe
Reference and mounting: The product reference recorded for this listing is T5169GKLE while the title and the description both read CHLK8B. Two codes for one bottle, and CHLK8B is the one that matches the 8-ounce blue product
Amazon reference: B0H382HFS2
EAN: 0092644770029

What the maker puts in writing

8-ounce ultra-fine chalk · fine powdered chalk dispenses smoothly from the fine-tip nozzle
Fine-tipped nozzle slots seamlessly into chalk reel openings · “can be used with all chalk reels”
Bright blue, high-visibility on drywall, concrete, stone, wood and plastic
“FADE RESISTANT: Semi-permanent chalk maintains its visibility for extended periods even under direct sunlight”
“WATER-RESISTANT: Effectively prevents washing and bleeding away in wet conditions”
“measuring in at ‘1’ on the permanence scale”

Reference recorded as T5169GKLE; title and description both read CHLK8B.

Blue chalk that does not wash off

Which is the opposite of what the color is supposed to mean.

This shelf’s buying tip: use blue indoors as a default and keep red for outdoor work only. The color convention is not decorative — on most brands it tells you which grade is in the bottle.

This bottle is blue, and sold as semi-permanent, fade-resistant in direct sunlight and water-resistant.

So it is not the chalk to snap across a plastered wall that will be painted.

Read the bottle, not the color. And test on an offcut before marking anything finished.

Thirty-seven cents an ounce

Against ten dollars nineteen on the other bottle on this shelf.

Eight ounces for two dollars ninety-eight. Two ounces for twenty dollars thirty-seven.

Same shelf. Same powder. A factor of twenty-seven.

Fineness decides the edge

Not the color.

A chalk line is laid by a loaded string being lifted and released. The powder that leaves the string either settles as a crisp band or spreads as a fuzzy one.

Coarse grains bounce and scatter. Fine grains stick where they land.

This shelf’s introduction lists fineness as one of five comparisons for exactly that reason — and an ultra-fine chalk also pours through a fill neck without clumping, which is the other half of the claim.

And two references on one bottle

T5169GKLE in the product field. CHLK8B in the title and the description.

CHLK8B is the one that matches an 8-ounce blue refill. Confirm it on the order page.

Availability

On sale at around 3 € on the American Amazon store at the time of checking.

Prices and availability are what Keepa reported on the date this page was updated; both move.

Prices quoted in this text were read on 8 October 2026. The live price is at the top of the page.

What gets asked here

Is blue chalk temporary or not?

Usually yes, and this bottle is the exception that shows why the convention is a convention rather than a rule. This shelf's buying tip says blue indoors, red outdoors, because on MOST brands the color tells you the grade. Klein states this blue is semi-permanent, fade-resistant in direct sunlight and water-resistant, and rates it 1 on its own permanence scale — so it is not the chalk to snap across a plastered wall that will be painted. Read the bottle, not the color, and test on an offcut before marking anything finished.

What does "1 on the permanence scale" mean?

Nothing comparable, because the scale is Klein's own and no other chalk on this shelf uses it. What can be said is the direction: 1 is the low end of a permanence scale, so this is the least permanent grade Klein sells rather than a fully temporary one — which is consistent with semi-permanent, fade-resistant and water-resistant all appearing on the same label. Treat it as a chalk that stays put outdoors for a while and does not disappear indoors with a brush. For genuinely removable work, white chalk is the safe choice and nobody on this shelf sells it.

Why does fineness matter?

It decides the edge of the line. A chalk line is laid by a string full of powder being lifted and released, and the powder that leaves the string either settles as a crisp band or spreads as a fuzzy one — coarse grains bounce and scatter, fine grains stick where they land. This shelf's introduction lists fineness as one of five comparisons for exactly that reason. It also decides whether the powder flows: an ultra-fine chalk pours through a reel's fill neck and a fine-tip nozzle without clumping, which is the other half of what Klein is claiming here.

Elsewhere in the spares drawer

OX Mechanical carpenter pencil, 2.8 mm (0.11 in), steel feed tube

The only marker here with a steel feed tube — which is the part a 2.8 mm (0.11 in) lead actually breaks in.

Material
Built from PP, ABS and STAINLESS STEEL, stated, with a stainless steel FEED TUBE described as making lead changes fast and easy. It is the only metal named inside any marker on this shelf, and the feed tube is the part that matters: a plastic tube wears oval and then the lead wobbles, which on a needle-nose tip is the end of precision
Functions
A one-click system dispensing 2.8 mm (0.11 in) lead, stated for clean consistent lines and built for repeat use. One click per advance is a small thing that decides whether you can feed lead with one hand while the other holds a square
Stated dimension or range
An EXTRA-LONG NEEDLE-NOSE TIP for tight precise marking, stated — with no figure. The marker beside it on this shelf publishes 6 mm (0.24 in) by 45 mm (1.77 in), so the comparison cannot be made: extra-long against what, and down a hole of what diameter, is left to the photograph
Supplied
Four leads, stated, and refillable with OX Tuff Carbon 2.8 mm (0.11 in) leads. Four is the fewest on this shelf, where the others ship six, seven or ten — and naming the refill product by name is the useful half: a 2.8 mm (0.11 in) marker with no named refill is a marker you guess refills for
Body and fittings
A built-in sharpener AND a belt clip, stated to keep the pencil on a tool rig or a pocket. It is one of two markers here with a clip rather than a holster, and the sharpener is in the body rather than in a separate part to lose
Also stated
Marks on wood, steel, tile, concrete and stone. No lead HARDNESS and no lead Color is published — the Tuff Carbon name suggests graphite, and this shelf's introduction says graphite disappears on dark stone, which is on OX's own list of surfaces
Amazon reference
B08XQVV4GR
EAN
9341231018336
- A stainless steel feed tube, the only metal inside any marker here
- One-click lead advance, usable one-handed
- No tip dimensions behind "extra-long needle-nose"
Best for: Repeat marking on steel, tile and stone, where a plastic tip would wear oval

≈ $15
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Pica Dry Longlife automatic deep-hole marker

The trade standard: automatic lead advance in a stainless tube, stated to mark on smooth, rough, damp, dusty and oily surfaces alike.

Amazon reference
DE B002X7Y90U · US B002X7Y90U · GB B002X7Y90U · FR B0FMX9WBYQ · IT B002X7Y90U · ES B0FMX9WBYQ
EAN
4016671026740
Marking medium
Automatic lead advance
Material
stainless tube
Construction and safety
dust and damp protection
Body and fittings
integrated sharpener
- Automatic lead advance — no sharpening interruption, and no lost cap
- A stainless steel tube with stated dust and moisture protection
- The most expensive marker here
Best for: Daily marking in conditions where every other pencil has already given up.

≈ $14
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THORVALD Deep-hole marker with holster, 45 mm (1.77 in) tip

The only marker here that tells you both how long its tip is and which lead color works on dark stone.

Stated dimension or range
A long narrow tip of 6 mm (0.24 in) DIAMETER and 45 mm (1.77 in) LENGTH, stated, for marking deep holes, gaps, tight corners, hinges and fittings. It is the ONLY tip dimension published on this shelf — one other marker says extra-long needle-nose and gives no figure — and both numbers matter: the diameter decides which hole it enters and the length decides how far down it reaches
Supplied
SIX leads: four graphite plus one yellow and one red — and THORVALD is the only maker here to say what each color is for. Graphite for wood, metal, drywall and light surfaces; yellow and red for stone, ceramic, concrete and dark materials. This shelf's introduction says graphite disappears on dark stone where white or red shows, and this is the listing that acts on it
Body and fittings
A protective holster with an integrated sharpener and a quick-clip attachment, stated for one-hand access on a ladder or overhead. The holster is where the sharpener lives, which means it cannot be lost separately — and the clip is what keeps the marker off the floor
Material
A soft-touch grip stated to hold firmly with dusty, sweaty or wet hands, in a heavy-duty holster and body stated to resist drops, dust, moisture and impact. A high-visibility orange body, stated — which on a site floor is the difference between finding it and buying another
Functions
Mechanical lead advance. No lead HARDNESS is published — no HB, no 2B, nothing — and neither is a lead diameter, where two markers on this shelf state 2.8 mm (0.11 in). This shelf's introduction says lead hardness and color decide which surfaces take a mark; this listing answers the color half completely and the hardness half not at all
Also stated
Named for plumbers, trim installers, cabinet makers, metalworkers and finish carpentry, and separately for electricians, framers, roofers and HVAC. Every tool inspected before shipping, stated
Amazon reference
B0G7G86R3D
EAN
3760394610069
- The only published tip dimensions here: 6 mm (0.24 in) by 45 mm (1.77 in)
- Six leads, with the color-to-surface match written out
- No lead hardness published
Best for: Marking through a hinge recess or a fixing hole on concrete, where graphite shows nothing

≈ $10
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All marking chalk

Klein Tools Blue chalk refill, 8 oz, ultra-fine

Specifications

What the maker puts in writing

Blue chalk that does not wash off

Thirty-seven cents an ounce

Fineness decides the edge

And two references on one bottle

Availability

What gets asked here

More marking chalk

Oregon Marking chalk crayons, twelve red

Tracer Wax marking crayons, twelve red

bauCompany24 Forestry marking crayons, twelve green

Elsewhere in the spares drawer

OX Mechanical carpenter pencil, 2.8 mm (0.11 in), steel feed tube

Pica Dry Longlife automatic deep-hole marker

THORVALD Deep-hole marker with holster, 45 mm (1.77 in) tip