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2.5 lb or 4 lb club hammer

Updated: 23 October 2026

You are choosing between the usual general club hammer and the heavy head, and the heavier one feels as if it will finish the brick in fewer blows. It will, until your arm drops and the bolster walks off the line. A 2.5 lb or 4 lb club hammer is that trade: control against mass. In this amazon.co.uk snapshot of 22 October 2026 the two clear examples are the OX Trade at 2.5 lb and the Faithfull FAIFG4 at 4 lb. Both are fibreglass. The [Lump hammer comparison](/hub/hand-tools/lump-hammer) lists every kept hammer. Products Compared did not lab-test either head. A qualifying purchase through our links can earn us a commission at no extra cost to you.

You are choosing between the usual general club hammer and the heavy head, and the heavier one feels as if it will finish the brick in fewer blows. It will, until your arm drops and the bolster walks off the line.

Our top picks

Bargain Hound Bargain Hound 3 lb lump hammer

Best overall

Bargain Hound Bargain Hound 3 lb lump hammer
7.1/10about £8.99
View offer
OX OX Trade 2.5 lb club hammer

Rank 2

OX OX Trade 2.5 lb club hammer
8.6/10about £12.00
View offer
Faithfull Faithfull FAIFG4 4 lb club hammer

Best value

Faithfull Faithfull FAIFG4 4 lb club hammer
8.4/10about £8.99
View offer
On this page
  1. 1.What the two weights are for
  2. 2.The 2.5 lb OX in this set
  3. 3.The 4 lb Faithfull in this set
  4. 4.Which to buy

What the two weights are for

BuildWiz’s guide, a rule of thumb and not a standard, says buy 2.5 lb if you only buy one club hammer, and keep 4 lb for sustained heavy work. 2.5 lb is about 1.13 kg and 4 lb is about 1.81 kg. InterDIY’s span is about 800 g to 1,800 g, so a true 4 lb head is at the top of a one-handed hammer. Kitd warns that a 4 lb lump hurts the wrist on ordinary work. If the choice today is only this pair, 2.5 lb is the closer match to a bolster you must place.

The 2.5 lb OX in this set

The OX Trade OX-T081302, ASIN B00JFY62WM, is £12.00, rank 1 in Club Hammers, with 4.7 from 3,349 reviews. The dimension row says 25.7 cm. UK reviews mention bricks, chisels, and slabs. The item-weight row says 133 g. Do not use it. That cell is a catalogue error next to a 1.1 kg title. On a common brick, scored all round and supported on sand, that mass is enough. On a dense block it feels slow, which is a cue to consider 3 lb or a short spell at 4 lb.
Bargain Hound Bargain Hound 3 lb lump hammer

Testsieger

Bargain Hound Bargain Hound 3 lb lump hammer
7.1/10about £8.99
View offer

The 4 lb Faithfull in this set

The Faithfull FAIFG4, ASIN B0001GRWD6, is £8.99, rank 3, with 4.7 from 1,493 reviews. The title is 4 lb / 1.8 kg. A components line says 1.81 kg, and the item-weight row says 1.97 kg. Unlike the OX row, these figures are all in the heavy band. A 5-year guarantee is stated. Pasted UK reviews use it on wedges, stone, and fence posts, and they say it tires the arm. £8.99 against £12.00 is the best value when you already want 4 lb. It is a bad saving if you wanted 2.5 lb and took the heavy head because it was cheaper.

Which to buy

Buy the 2.5 lb OX when you have to place the blow for more than a few minutes: bricks, a bolster, pegs, light chasing. Buy the 4 lb Faithfull when the session is short and the material needs the mass: wedges, stubborn stakes, breaking rather than trimming. If you only own one, make it the 2.5 lb. Bargain Hound and MUKCHAP are a middle step if 2.5 lb only marks dense block, and their review counts are much smaller. Bargain Hound’s title says 3 lb / 1,385 g and the item-weight row says 1.28 kg.

Common questions

Is 2.5 lb enough to cut a brick?
Yes, for a common brick scored on every face and supported on sand or earth. DIY Doctor’s method is lighter blows first, then a split, and a 2.5 lb head can do that. Dense blocks may want something nearer 3 lb. If the brick only dusts and never grooves, check that you are hitting the chisel, then consider more mass. Jumping straight to 4 lb because the first pass was polite is how the second pass misses.
When is 4 lb the right head?
When you are wedging, demolishing, or driving something that a lighter face only polishes. Fence posts, stone, and stubborn stakes are the jobs in the Faithfull reviews. It is the right head for a short run of those blows, and the wrong head for an afternoon of accurate chasing. CMT’s about 2 kg is a rounded label. The listing says 1.8 kg, and the item weight says 1.97 kg.
Will a 4 lb hammer hurt my wrist?
It can, on general work. Kitd says so about a 4 lb lump used as an ordinary tool, and the Faithfull reviews describe the arm tiring. Pain is the signal to stop, not a sign you need more mass. Use 2.5 lb for the long jobs and 4 lb only when you mean it. If your wrist is already sore, do not test the heavy head on a bolster.
Is the OX actually 2.5 lb if the item weight says 133 g?
The title says 2.5 lb / 1.1 kg. The 133 g cell is not a credible head weight, so it is not treated as one. Rank, review count, and the 25.7 cm dimension describe a full-size club hammer. Weigh it on arrival if you need to be sure. A hammer that really arrives at 133 g is not what the title sold you, and it goes back.
Is the Faithfull 4 lb really 4 lb if the item weight is 1.97 kg?
The title says 1.8 kg, which is 4 lb, and one components line says 1.81 kg. The item-weight row is 1.97 kg, about 9% higher. That is a real disagreement, and it still describes a heavy club hammer rather than a different tool. Expect the top of the 4 lb band. There is no published length to cross-check.
When do I need a sledge instead?
When the piece is a slab, a large lump of concrete, or anything you cannot shift with placed blows from a short handle. A sledge has a long shaft and two hands. Milwaukee is filed under Sledgehammers and is still a 1.36 kg short hammer. Chipping a patio with a 4 lb club hammer is slow, and the chips are an eye hazard. Hire a breaker, or get a mason in, rather than adding more swings.

Related pages

How to use a club hammer

Fibreglass or hickory club hammer

Club hammer buying guide

Lump hammer

Best lump hammer for bolster work, 4 lb, or hickory

Sources

Sources from the research digest, last checked on 22 October 2026.

  1. BS 876:1995, specification for hand hammers (retrieved 22.10.2026)
  2. InterDIY, hammers buyer's guide (retrieved 22.10.2026)
  3. Screwfix, hammer buying guide (retrieved 22.10.2026)
  4. BuildWiz, club hammer (retrieved 22.10.2026)
  5. HSE, INDG229 Using work equipment safely (retrieved 22.10.2026)
  6. HSE, using the right type of PPE (retrieved 22.10.2026)
  7. PUWER 1998, regulation 4 (retrieved 22.10.2026)
  8. Consumer Rights Act 2015, section 9 (retrieved 22.10.2026)
  9. DIY Doctor, using a brick bolster (retrieved 22.10.2026)
  10. CMT, club hammers with a hickory handle (retrieved 22.10.2026)
  11. Sealey, hammer instructions (retrieved 22.10.2026)