15A409 Up for sale is a solid carbide coated  high performance special step drill tool drills a hole thats around  0.435 x 0.810 deep the angles up to 0.787 dia for 0.922 depth then angles at a 45 up to 0.987 dia. the 0.987 dia is non cutting so this it made to make a 0.787 dia hole and a chamfer to 0.987 dia. the tool is 4 inches long and has a 22 MM dia shank. made if high grade solid carbide. tool is a Z type high performance design . these tools were made to run on a low horsepower machine to drill this 0.787 dia fast in production.  Hard cut  coated tool. this is coated for extra wear resistance , made by iscar cutting tools ,  buyer to pay calculated shipping packing to your USA  and other locations great item for a bridgeport shop or CNC shop we used these on our CNC bridgeport for a special job . see our store for more stuff like this. Thank you RWK