The cone is not truly symmetrical as it is essential that the cone retreats away from the cutting edge as the tool rotates
These Rotary Only ceramic tile drills provide outstanding performance and extended tool life in hard ceramic materials
Re-cut your hole using a new size hole saw
In most situations it will produce thicker chips minimising work hardening of the cavity
Saber 16-92mm 12 Piece S3 Quick Change Hole Saw Kit The cone is not trulySaber 16 92mm 12 Piece S3 Quick Change Hole Saw Kit Saber cobalt bi metal hole saws are premium quality, general purpose saws suitable for a wide variety of materials and applications. The high speed steel cobalt (HSS Co) cutting edge provides shock resistant teeth and resists tooth strippage. 4 6 positive tooth configuration allows for fast, smooth cuts and less vibration. Contains 16, 20, 22, 25, 32, 40, 50, 54, 64, 92mm bi metal hole saws, quick