Stealth™ STX Cutting Technology cuts incredibly fast, cutting through ice 20% faster than standard Auger Blades. The Stealth™ Cutting Technology premium features are: The Stealth™ Serrated Power Point - A positive guide to smooth easy cutting. Five Cutting Surfaces - Make this the fastest ice cutting drill by Jiffy. Black D-Ice'r ARMOR - Prevents power-robbing ice buildup for fast, clean, cutting performance. The Serrated Chipper Tooth RIPPER BLADE – Provides a Smooth, Fast, and Long-Lasting Cutting Performance.