Accurate, burr-free holes precision ground carbide teeth for fast cutting of clean, round holes|Will not damage work over drill stopper prevents the tool from penetrating beyond the hole|Starts on contact - split point pilot bit for faster penetration and less walking|For sheet metal hole cutting|1-1/4 in conduit size|Precision ground carbide teeth for fast cutting of clean, round holes|Over drill stopper prevents the tool from penetrating beyond the hole|Split point pilot bit for faster penetration and less walking