Reduced Shank Drill 18mm 1/2"

Stock Code:
2654-18.00
Price:
$93.87

Diameter (mm)18
Flute Length (mm)89
Overall Length (mm)152
Pack Quantity1
Spindle Speed Stainless Steel RPM212
Spindle Speed Tool Steel RPM319
Spindle Speed Cast Iron RPM425
Spindle Speed Malleable Iron RPM478
Spindle Speed Med. Carbon Steel RPM531
Spindle Speed Free Cutting Steel RPM761
Spindle Speed Aluminium/Brass RPM1079
Spindle Speed Wood/Plastic RPM1610
Feed per revolution mm0.34

 

BORDO REDUCED SHANK HSS DRILLS

118° notched point 30° helix

DRILL BIT SURFACE TREATMENT
Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating. This surface aids chip flow and heat dissipation. The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.