lots of answers! I have used these exact chisels on my sites, along with ten carpenters, for 20 years- everyone uses the claw hammer, they are specifically designed for use with a steel hammer- hence the aluminium cap. I did at first use my beech mallet which became damaged by the chisel. I will add that these Irwin chisels are brilliant on a building site but do need a lot of sharpening for second fix work, they don't keep an edge for long. Always had a set of Marples plastic too and more recently wooden handled vintage chisels ( that do indeed get the odd tap with my Estwing, but I get a simple pleasure turning new handles from time to time )I have a set of Irwin chisels, blue plastic handle with a steel cap. What type of hammer or chisel would be your choice? I just use a normal claw hammer at the moment, I know many use a nylon hammer but I was wondering how long it will last against the metal cap before the ends need replacing.