I'm in the market for a hammer to use with my chisels and I'm torn between getting a Bachelite hammer or a metal one. I want to avoid the typical nylon or rubber options. My projects will include mortises, dados, bridles, and joint planing. While my chisels have intact ferrules, I'm a bit worried that using a metal hammer could damage the wood. On the other hand, I think a small metal hammer might provide more precise blows, which I prefer. I'm not a fan of plastic materials, and even though Bachelite is technically plastic, I'm considering it. What do you all think? Would a 300g metal hammer be a bad choice compared to a 360g Bachelite hammer when it comes to preventing handle splits?
4 Answers
Why not just make a wooden mallet out of leftover wood? It's a fun project and gives you a great tool! Plus, wood is gentler on your chisels compared to metal.
I usually go for a wood mallet too. I like one that's about 20oz—it deals a good amount of force without risking damage to the chisel handles. Using two different types, one lighter for delicate tasks and a denser wood for bigger hits, works really well for me.
A round wooden mallet is likely your best bet. It's easier on your wrist, and wood has just the right amount of give to protect your chisels compared to a metal hammer.
Honestly, using a metal hammer on chisels isn't common and might lead to some issues. I’d recommend a dead blow hammer instead. Thorex has a nice one that's got a dual side—one for chisels and a softer side for other adjustments. This way, you get the efficiency without damaging your tools.
I've seen Japanese nomi chisels being struck with metal hammers, so it's not unheard of, but it’s usually risky!

Making a mallet from scratch is definitely a cool option, and it feels good to use something you created!