SOLID CAST STEEL 310 - 1/2 lb Ball Pein Hammer | Over the ye… | Flickr
Top fuller hammer for blacksmiths 2.5lbs
TIMCO Professional SDS Plus Hammer Bits (PGM) - 16.0 x 310 – JALFT
20 oz Head, Curved Claw Hammer OS085AL20
Vintage Stanley HO 310 Ball Peen Hammer 16oz USA | eBay
EWONICE 620PCs Hardware Nail Assortment Kit with 8oz Claw Hammer, Mini Hammer with Anti-Slip Handle, Anti-Corrosive Galvanized 310 Picture Hanging Nails & 310 Finishing Nails (Red) - Amazon.com
Gedore ROTBAND-PLUS 8583150 Ball-peen hammer 400 g 310 mm DIN 1041 1 pc(s) | Fruugo KR