Bronze Tempered (Bronze Oxide) Surface Treatment
A77721/64
Jobber Drill Split Point
Ordering number: 5971006
Jobber length drill with straight shank, diameter 0.3281" (21/64) with an overall length of 117mm and flute length of 75mm according to DIN 338 standard with 135° split point, cobalt based HSS-E with bronze finish for 4xD drilling without pecking in steel and super-alloy
Product Feature
High Speed Cobalt Steel Tool Material
DIN 338 – Straight Shank Drill Standards
4×D Usable Tool Depth to Diameter Ratio
Drill Point 135°
Cylindrical Shank / Straight Shank
Standard Spiral Flute Design
Right Hand Rotation / Cutting
h8 – Industry Standard Tool Tolerance Zone (based on diameter range)