This Kariwaku hammer from Dogyu, is my best seller in hammers and a great addition to your toolbox.
The head and frame of the handle is created with one whole piece of carbon steel. Handle grip is made of rubber. The nail holder groove in the head of the hammer has a magnet embedded inside to securely hold the nail, allowing for easy start with one hand and increases efficiency when hammering nails. The hole located above the nail holder groove is for bending nails or thick wires. Smooth faced (photo shows milled face)
Total length is 15-1/4″