- Weight: 0.06 lbs
- #4 Center Drill: 5/16" body diameter x 1/8" drill diameter x 2-1/8" overall length
- Made of premium M2 High Speed Steel and ground
- Plain style 60 Degree angle used for producing center holes in workpieces which require precision drilling or machining between centers. Also used as starter holes to prevent a drill bit from "walking"