Viking Drill and Tool 81162 Type 240-A-ACN 135 Degree Split Point Jobber Drill (29 Piece) 29 pc. Set High Speed Steel Heavy Duty NAS 907B 135-Degree Split Point 135-Degree split point for accurate centering and fast penetration High speed steel provides good wear resistance, can be used in general purpose applications for ferrous and nonferrous materials Titanium carbon nitride (TICN) coated - increases cutting surface hardness greatly increasing resistance to wear NAS 907B Heavy Duty Jobber