What's the connection between outlaw bikers and ball-peen hammers? - The Straight Dope
Hammer pins – RSIDE 81 Support Gear
Hammer Pins - Mesa HAMC Shop
Hells Angels Berdoo - 81 BERDOO Support Hammer. We have a limited run of these very cool hammers. A great addition for your 81 Support collection. These and all our original Berdoo