Sandvik Coromant 6040745 CoroDrill® 860, 0.5708 in Dia Min Hole, 0.7716 in Dia Max Hole, 2 Steps, 2 Hole Sizes, Solid Carbide

Step Drill Bits
1236262 MFG #: 6040745
Sandvik Coromant
840.67000 / 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 MF16x1.5 thread
18.672 deg orthogonal rake
139.7 mm L functional
48.9 mm L usable
3 regrinds
89.69 mm overhang
2.3 mm L point
10 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