User friendly size: each beer opener which works well with most bottles, a proper size to use; Bore hole: 3/8 inch threaded post, easy to install Sufficient for your daily use and replacement, handy accessories for your DIY and craft projects Long lasting quality: this wood turning project kit is made of quality zinc alloy, not easy to get tarnished, to and rust, smooth to touch with no burr, safe to use without having to worry about hurting your hands, reliable for long period application Extensive usage: the zinc alloy bottle opener makes it easier to open the beer bottle, which is labor saving and time saving; These blank bottle openers are suitable for beer, wine, soda and so on Easy to DIY: these metal openers are easy to use when making DIY bottle openers, and you can install a wooden handle for it, add fun for DIY your bottle opener, making a useful accessory for kitchen or bar; Please note the handle cannot be drilled too tightly