The 16pcs Glow Plug Removal Remover Tool Kit is a versatile set designed for efficiently removing glow plugs from engines. With both 8mm and 10mm sizes included, this kit provides the necessary tools for various applications. The kit includes multiple pieces to ensure a comprehensive and convenient solution for maintaining and repairing your vehicle's glow plugs. Perfect for automotive mechanics and DIY enthusiasts looking to quickly and effectively remove and reinstall glow plugs. It doesn't appear to have been used much at all. Most pieces show no use. The only issue I can see is one of the drill bits is broken on the end as shown in the photo.