4-margin design improves accuracy and surface finish along with increased strength for aggressive drilling
Specialized self-centering notched point eliminates the need for spot drilling decreasing thrust and deflection
Engineered edge protection improves edge strength and reduces edge fatigue allowing for increased feed rates
Recommended for materials ≤ 56 HRc (≤ 577 Bhn)
Product Specifications
Manufacturer Part Number
67909
Size
12.50mm
Cutting Diameter (Decimal Inch)
0.492″
Cutting Diameter (mm)
12.50mm
Shank Diameter (Decimal Inch)
0.551″
Shank Diameter (mm)
14.00mm
Flute Length (Decimal Inch)
3.189″
Flute Length (mm)
81.00mm
Usable Length (Decimal Inch)
2.500″
Usable Length (mm)
63.50mm
Overall Length (Decimal Inch)
6.102″
Overall Length (mm)
155.00mm
Shank Length (Decimal Inch)
2.323″
Shank Length (mm)
59.00mm
Shank Diameter Tolerance
h6
Point Angle (Degree)
180 Degree
Flute Type
Spiral
Number of Margins
4
Number of Flutes
2
Reach (xD)
5xD
Center Cutting
No
Double Margins
Yes
High Performance
Yes
Self Centering
Yes
Coating
TX (Ti-NAMITE-X)
Product Type
Flat Bottom Drill
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