Carpenter pencil lead grades
Updated: 22 October 2026
You have a listing open that prints 4H, HB or 2B. Carpenter pencil lead grades sort black leads into an order, though they are not a laboratory pass mark, and several pencils on this amazon.co.uk shelf print no letters at all. Peter F. dated this page 22 October 2026 and read eleven stored listings against public UK sources, with no lab hardness test. A qualifying purchase through our links can earn a commission at no extra cost to you. Body, holster and price sit in the [carpenter's pencil comparison](/hub/measuring-and-marking-tools/carpenter-s-pencil).
You have a listing open that prints 4H, HB or 2B.
You have a listing open that prints 4H, HB or 2B. Carpenter pencil lead grades sort black leads into an order, though they are not a laboratory pass mark, and several pencils on this amazon.co.uk shelf print no letters at all. Peter F. dated this page 22 October 2026 and read eleven stored listings against public UK sources, with no lab hardness test. A qualifying purchase through our links can earn a commission at no extra cost to you. Body, holster and price sit in the carpenter's pencil comparison.
Our top picks
| Badge | Product | Lead grade | Diameter | Body | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Tracer Tracer AMK1 deep-hole kit | 2B | 2.8 mm | ABS, long nose | 9.2 | about £11.71 | View offer |
| Alternative |  Trademaster Trademaster TriGrip pencils, pack of 12 | Hard lead, no letter | 0.3 mm field | Triangular wood | 8.5 | about £9.99 | View offer |
| Preis-Tipp |  Tracer Tracer 4H pencils, 12 pack | 4H | 0.3–0.9 mm field | Flat-sided wood | 8.9 | about £5.95 | View offer |
On this page
The letters are an order, not a certificate
ISO 9180:1988 classifies black leads for wood-cased pencils from 6B through to 9H, and the sample text says hardness degree has no scientific definition yet. It is not a site pass mark, and it is not a British Standard.
Faber-Castell's UK FAQ says more clay makes a harder lead, with H for hard and B for black. The scale was never internationally standardised, so the grade still depends on the maker. A 4H on the ACP1 is not proven harder, in a shared test, than HB on XTSUN or Nicpro. The two labels stay separate claims.
You will meet 4H, HB, 2B and blanks here, not 9H or 6B from outside this set.
What this shelf actually prints
Four groups appear in the stored fields, and they are labels rather than a ranking. Tracer ACP1 (B0CC33FQN7) is the only 4H carpenter pencil. XTSUN (B0H53V6RLV), MECHEER (B0CN5DDDCZ) and Nicpro (B0CLR6HB3P) print HB. AMK1 (B07DRLVHM2), Pencil 2.0 (B0GYPTKKKC) and the Pro (B0D92M51VB) print 2B. Trademaster (B0DXQ766MG) says hard lead, while Olivvia (B0G6ZDGTN9), Precision (B0GL8YDGVB) and Tough (B0GQDS4WV7) print no grade.
A 2B kit is not a trial against the ACP1, and an HB pack is a different claim. Review volume sits on the best carpenter's pencil page.
Hard lead does not place Trademaster beside the ACP1 on the ISO order, and Olivvia, Precision and Tough stay ungraded. A Nicpro UK review saw red through Zinsser Coverstain, which is paint, not hardness. XTSUN's reviews are labelled Germany, so they are not UK evidence for HB on stone.
Grade is not the same as diameter
The letter does not fix core thickness, and four listings print clashing diameters. MECHEER shows a 0.5 mm line-size and a 2.8 mm item diameter, and the Pro shows 0.7 mm plus a later 2.8 mm block. Nicpro's bullets say 2.8 mm while another field lists 1.3 mm and 2.0 mm. Precision shows 1.3 mm and a range of 1.0 to 1.9 mm. Those figures conflict with each other.
2B on the AMK1, Pencil 2.0 and Pro says nothing about sleeve reach. Tough prints 5.2 mm and no grade, so width is not 4H, HB or 2B. How far the nose goes is on the deep-hole or flat carpenter's pencil page. Keep the millimetres next to the letter.
Read both numbers before you expect a fine line or a bold one. HB on MECHEER settles neither the 0.5 mm line-size nor the 2.8 mm item diameter.
What the two UK explainers disagree on
The Carpentry Compendium treats HB to about 4H as the site band, and its author places a good carpenter's pencil around 4H for hard wear, including wet material. That is one author's view, not a test of the ACP1. MyToolShed points hard leads at planed timber and soft leads at rough, porous surfaces. Keep the two accounts apart, because neither page wrote a merged rule.
Neither explainer tested these eleven listings. About 4H does not prove the ACP1 harder than HB from XTSUN or Nicpro. A rough-surface note does not prove a 2B kit marks brick better than HB. Choose the ACP1 for the only 4H on an open-face dozen, and leave wet material as that author's view. Choose 2B when that deep-hole kit already fits the hole, or HB when the pack prints it.
Common questions
Is 4H a British Standard?
No. 4H is one step in ISO 9180:1988. That standard classifies black leads for wood-cased pencils and says hardness has no scientific definition. The 1988 edition was confirmed again in 2026. On the Tracer ACP1 the letters are a label, not proof the line lasts on wet timber.
Why do the deep-hole kits say 2B?
The Tracer AMK1, Pencil 2.0 and Pro print 2B on the leads in those kits. That is the grade the listing claims for the refill, not a reason the maker chose it, and not proof that 2B reaches further than HB. Reach is the nose and the sleeve. If you picked one of those three for the hole, you are also taking the 2B it prints. The Tough 5.2 mm kit prints no grade.
What if the listing only says hard lead?
Read it as an ungraded phrase. Trademaster (B0DXQ766MG) says hard lead and prints no 4H, HB or 2B, and Olivvia, Precision and the Tough 5.2 mm kit print no grade either. Hard there is not the H side of ISO 9180, so the pencil is not the same step as the ACP1. When the letter matters, buy a listing that prints one. When the body matters more, keep the blank visible.
Does a 5.2 mm lead have a grade?
Not in this set. The Tough kit prints 5.2 mm and no hardness letter, so thickness does not stand in for 4H, HB or 2B. ISO 9180 covers diameters as well as the grade order, and a millimetre is still not a hardness result. A 5.2 mm core can lay a bold line because it is wide, and it can be too coarse for a fine mark. Treat 5.2 mm as diameter only.
Do red wax refills follow the same scale?
No. ISO 9180's H and B letters apply to black leads. MECHEER pairs red wax refills with graphite marked HB, and the wax is off that scale. Red is a colour for a dark face or a second mark, not a harder or softer step than the HB core beside it. A Nicpro UK review saw red through Zinsser Coverstain, which is paint, so read HB on the black lead only.
Related pages
Sources
Public UK sources listed below, then the stored amazon.co.uk listings for these eleven pencils. Prices are the stored shelf prices, not a live ticker.
- Axminster Tools, measuring and marking (retrieved 22 October 2026)
- ISO 9180:1988, wood-cased black leads (retrieved 22 October 2026)
- Faber-Castell UK, pencil FAQ (retrieved 22 October 2026)
- Consumer Rights Act 2015, section 9 (retrieved 22 October 2026)
- HSE, hand knives (retrieved 22 October 2026)
- Wonkee Donkee, parts of a pencil (retrieved 22 October 2026)
- Hultafors, which marker or pencil (retrieved 22 October 2026)
- Bradfords, Tracer deep-hole pencil (retrieved 22 October 2026)