Norseman/CTD Drill and Tool (1pack/12 pc) 11/32" HSS 135 Degree Split Point Black Oxide Finish Jobber Drill - Type 190. Heavy-duty construction for drilling in tougher materials. Manufactured from premium high-speed steel. 135 degree split point is self-centering for reduce thrust and easier penetration. Manufactured to NAS 907B aerospace specification. (04670)