Martinez Tool Co. on Instagram: "Do you swing an M1 or an M4? #Repost @buildingwithalex ・・・ Side by side. M4 & M1. I don't think it's a right or wrong debate. But
Martinez M1: The Hammer Everyone Is Talking About - YouTube
Field Tested: The Martinez M1 Titanium-Handled Hammers | JLC Online
TF Tools - A Team in Sweden ordered 5 Martinez 15oz M1 Titanium Framing Hammer Curved handle / Smooth face, an M1 Smooth face Titanium Framing Hammer M4 Curved handle and an