We have Bostitch Rebuild Kits, O-Ring Kits, Trigger Conversion Kits, Valve Repair Kits and Bumper Kits to make your Bostitch Nailer purr like a kitten. We maintain our cars, don't we....why not maintain our tools? Moving parts wear and tear normally, Bostitch part kits will rebuild your tool and get you back to work again. If you follow a few short maintenance procedures consisting of taking your tool apart, cleaning it and installing the necessary Bostitch o-ring kits and trigger valve kits, you will never see any down time with your tool again.is just one of the numerous categories of tools and accessories offered at Tools-Plus.com. Shop with confidence knowing that Tools-Plus.com is an Authorized Internet Retailer.