Bronze Tempered (Bronze Oxide) Surface Treatment
R18CON74
R18CO Jobber Drill
Ordering number: 5997825
Jobber length drill with straight shank, diameter 0.0225" (N74) with an overall length of 1" and flute length of 1/4" according to NAS907 Type J standard with 135° heavy duty split point, cobalt based HSS-E with bronze finish for 4xD drilling without pecking in steel, stainless steel, cast iron and super-alloy
Product Feature
High Speed Cobalt Steel Tool Material
NAS907 – Aerospace Drill Standards
4×D Usable Tool Depth to Diameter Ratio
Drill Point 135°
Cylindrical Shank / Straight Shank
Right Hand Rotation / Cutting