XT Drill Assemblies fit All LHR Jiffy Ice Drills (Includes Blade Teeth and Blade Protector). The Stealth STX and Ripper serrrated blades last 2-3 times longer than any blade on the market.The blades feature baked on, E-friendly finish to protect the blade, while the serrations provide a faster, smoother cut. When combined with D-Ice`r ARMOR on the bottom end of the drill assembly, the RipperTM provides the best in super-fast cutting and resistance to ice-up. The best warranty in the industry - the only ice drill to offer 2 year blade sharpening or replacement warranty. Available in 6 inches, 8 inches, 9 inches and 10 inches. (10 Inch Not Recommended for Jiffy 2500 Series or Tecumseh 2HP Models). STX Drill Assemblies Not recommended for PRO4 Lite or 4G Lite models.