Hammer, Club

Quick Answer: A club hammer, also called a lump hammer, is a short-handled hammer with a heavy, double-faced steel head. The club hammer is swung with one hand to drive cold chisels, bolster chisels and stakes, and for light demolition and masonry work.

Weight Close to the Hand

This hammer sits between an engineer’s hammer and a sledge. Its head is much heavier than a claw hammer’s, but the handle is short, so the user can deliver strong, controlled blows with one hand in a confined space while the other hand holds the chisel or stake. Both faces are the same shape, so there is no wrong way round.

Its main partner is the steel chisel. A cold chisel held against a bolt, a bolster laid on a brick or a masonry chisel in a mortar joint is struck squarely on its head, and the weight of the hammer drives the edge in without a long swing. On geography and geology field courses, a club hammer and cold chisel are also used to split loose rock and free samples, with eye protection for everyone nearby.

A sledge hammer is the two-handed tool for heavier driving and breaking. Nails and panel pins belong to a claw or cross pein hammer, because the broad, heavy face of a lump hammer bends them.

Care & Handling

• Grind the mushroomed heads of chisels back before striking them; ragged edges can fly off.
• Wear safety glasses, and have anyone nearby wear them too, when striking steel or stone.
• Hold the chisel low down or in a guard and strike its head squarely.
• Inspect the handle for cracks and the head for looseness before each session.

Specifications

Applications

• Driving cold chisels to cut bolts, rivets and sheet metal in fitting workshops
• Cutting bricks and raking out mortar with a bolster in construction trade training
• Driving wooden or steel stakes for field plots, quadrats and survey markers
• Splitting rock and collecting samples on supervised geology field trips

Why Choose LabEquip

Construction and fitting workshops, geography departments with field plots and site maintenance teams use a club hammer where a claw hammer is too light. LabEquip includes it among its general lab products; ask about head weight through the contact page.

Frequently Asked Questions

What is the difference between a club hammer and a sledge hammer?

The club pattern has a short handle and is used one-handed for controlled blows, often on a chisel. A sledge hammer has a much longer handle and heavier head, is swung with both hands, and is used for breaking and heavy driving.

Can a lump hammer be used for nails?

It is not suited to nails. The broad, heavy face bends small nails and dents the timber around them. Use a claw or cross pein hammer for nailing.

Why do chisel heads need to be dressed?

Repeated blows spread the chisel head into a mushroom shape with a ragged edge. Those fragments can break off at high speed, so the head is ground back to a clean bevel before further use.

Is a lump hammer suitable for collecting rock samples?

It can be used with a cold chisel to split loose blocks and wedge samples free, under supervision and with eye protection. Many geologists also carry a dedicated geological hammer for smaller specimens.

Should a lump hammer be used on hardened steel?

No. Striking hardened steel, another hammer or a hardened punch can chip the face and throw sharp fragments. Use it on chisels and stakes made to be struck.

How should the hammer be held?

Grip near the end of the handle for power or a little closer to the head for control, keep the wrist firm and watch the point being struck rather than the hammer head.

Last Updated: September 2026