Tack hammers, jeweller's hammers, and upholstery hammers are all specialised types of hammers used for specific tasks.
A tack hammer is a small, lightweight hammer with a narrow, pointed head that is used for driving small tacks and brads into wood or other materials. It is commonly used in upholstery and other crafts where precision is important.
A jeweller's hammer is a small, lightweight hammer with a flat or slightly rounded head that is used for shaping and forming metal in jewelry making and other small-scale metalworking tasks. It is often used in conjunction with a jeweller's anvil to shape and form metal wire, sheet, or other small pieces.
An upholstery hammer is a hammer with a magnetised head and a forked tip that is used for removing staples and tacks from upholstery and other fabrics. The magnetized head helps to hold onto the staples and tacks, while the forked tip allows for easy removal without damaging the fabric.
Each of these hammers has a specific purpose and is designed to be used in a particular way. Proper use of these hammers can make the task at hand easier and more efficient, while improper use can lead to damage to the material being worked on or injury to the person using the hammer.