Sandvik Coromant 6040712 CoroDrill® 860, 0.2086 in Dia Min Hole, 0.2834 in Dia Max Hole, 2 Steps, 2 Hole Sizes, Solid Carbide
Step Drill Bits
1236269
MFG #: 6040712
Sandvik Coromant
166.00000
/ ea
CoroDrill® 860 is a solid carbide drill designed for a fast and problem-free drilling. It maximizes productivity through high metal cutting efficiency and machine utilization. With excellent chip evacuation in long and short chipping materials, CoroDrill 860 provides green light machining at high penetration rates. The CoroDrill 860 product offer consists of three drill geometries - optimized for steel, stainless steel and aluminium. The drill comes in lengths 3 - 8xD as standard. Extended assortment is available as Tailor Made.
- Features
| High penetration rates|Long tool life, controlled wear formation|Low cost per hole|Improved performance reliability|Optimized chip evacuation|Excellent and consistent hole tolerance|Dedicated geometries |
| Axial concentric coolant exit |
| EFW cutting feed |
| 27.5 deg right hand helix flute |
| For MF6x0.75 thread |
| 18.672 deg orthogonal rake |
| 78.2 mm L functional |
| 17.8 mm L usable |
| 3 regrinds |
| 42.08 mm overhang |
| 0.8 mm L point |
| 6 mm L regrind |
| 50000 r/min |
| 90 deg included step |
| M7 cutting diameter tolerance class |
| H6 connection diameter tolerance |
| H9 achievable hole tolerance |
| P material classification |
| 860.2..A1-PM (3xD) tool style |
| Optimized cutting data |