PATENTED PCD DIAMOND DRILL BIT * Vastly improved drill life * Improved drill hole surface finish * Greater tolerance control * Greatly reduced downtime due to fewer drill changeovers and quality checks * Rugged construction enables the Everlast® drill to handle difficult conditions that damage other drills beyond use * Increased drill speeds and feeds * Designed for very high silica aluminum * Designed for many current composite materials - Kevlar®, etc.