# 4COJO Jobber Drill, M-42 Cobalt, 135 Degree Split Point, Size: #4, NAS907 Type J

Description

Jobber Drill, M-42 Cobalt, 135° Split Point, Size: 4, NAS907 Type J Description

Jobber Drills, M-42 cobalt, 135° point, type J. Manufactured to Aerospace Standard 907, Jobber length drills, commonly referred to as simply ‘Jobber Drills’, are the workhorse of the aviation industry. Quality is the key to producing satisfactory holes, and will determine production rates and tool durability.