You NEVER know what you’re gonna run into when it comes to door and hardware maintenance and repairs. Might have Broken off or Stripped out screws that need to be extracted or have Wallowed out holes that need to be Filled and Re-drilled. Often on exterior doors you will have Rusted Screws that need to be Replaced ( they're zinc but should have been stainless steel ) and you most likely will have to Shim Doors to set things straight. The Door Maintenance and Repair Kit is filled with those hard-to find bits, tips , taps and door and hardware screws...Those special 12:24 or #12 Self Drilling hinge screws with that special undercut head...and self drilling #6 kick plate screws with that special “kickplate head.” . It also has Specialty self drilling screws for Door Closers, Exit Devices, Weatherstripping and Astragals. Also included in the kit are #12 and #5 Vix Bits for accurately drilling pilot holes in wood doors for hinges and latches. Sometimes you need a screw a little longer and other times you need one a little shorter. The kit includes those and everything in between. Includes OVER 1800 SCREWS ALONE !! YOU get aScrew Bolt Extractor set, 100 Ready Shims For Both Rated and NonRated Doors, A Door Wedge you place under the door edge to hold it open while you fix it up, Door Pressure Gauge and Door Gap Gauge, Drills & Taps, #1,#2 and #3 Phillips Insert tips, Door Silencers and Burtha's ButtWax too....Also, Comes with its own sturdy carrying case . This Door Maintenance and Repair kit is for Fire Doors and Non-Rated Doors too. Priced Nice at the COMBO PRICE.. Just Click on the pics and give it a second to load then check out the list of everything thats included in this AWESOME KIT !! SOMETIMES YOU DON'T KNOW WHAT YOU NEED UNTIL YOU NEED IT... THAT'S WHY WE GOT IT !!