Replacement handles available for your hammer at The Hammer Source
Solid Wood Hammer Handle Tool Shaft Replacement High Quality Length 28-37cm Home | eBay
3 Pack Replacement Handles for Sledge Hammers, Small Sledge Hammer Handle Replacement Wooden Hammer Handle Replacement Wood Tool Handle for Round Head Hammer Octagonal Hammer, 12.2 Inch Long - Amazon.com
uxcell 16 Inch Hammer Wooden Handle Wood Handle Replacement for 2 to 4 Lb Hammer Oval Eye 2 Pack - Amazon.com