The Bonnie Hammer tool head is made for tree fellers or chainsaw crew assistants. A majority of the Hotshot Crews carry four chainsaws with their 20 person crews. This tool originated from a request to us by the Bonneville Hotshot Crew to design and manufacture a combination tool to drive felling wedges and to grub fire line. The first-generation Slam Hammer tool head was cast steel, while this second-generation is now forged steel for greater strength and durability. The Bonnie Hammer tool head attaches to our Universal Handle (sold separately). The tool head has a steel wedge head on one side, and a 4 1/2-inch wide grub-hoe blade on the other. This tool head is now our second-most popular tool.