Designed and manufactured by Henry Holsters the DIY Quick Clip Drill Guide saves you time and money. Simple and quick to use this guide features four different hole popular hole spacings. Don't waste your time measuring and marking. Just use this simple tool to quickly and efficiently make 1/2", 5/8", 3/4", or 7/8" holes perfectly everytime. If you need 1" spacing see our Quick Clips with pre-punched holes.