Choose standard or large size, both heads feature a 3/8" - 16 thread tapped hole for attaching a fire-heated handle or electric heating tool. This attachment method ensures a tight fit when tightening snugly by hand and allows for maximum heat transfer when using their electric heating tools. Need your branding iron in a hurry? The standard production time is 3 business days, but they also have rush production. Select the rush option in the customizer for a 2 business day production turn-around. Brought to you in association with Amazon.com.