Triumph® 011528 T1C Heavy Duty Jobber Length Drill, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, 135 deg Point, Cobalt/HSS, Bronze Oxide
TTD11528
MFG #: 11528
$21.49
/ EACH
- Cutting Depth: 4-1/16 in
- Cutting Edge Material: Cobalt/HSS
- Drill Diameter Measurement System: Imperial
- Drill Size - Decimal Inch: 0.4375 in
- Drill Size - Fraction: 7/16 in
- Finish: Bronze Oxide
- Flute Length: 4-1/16 in
- Material: Cobalt/HSS
- Overall Length: 5-1/2 in
- Point Angle: 135 deg
- Point Type: Split/Self-Centering
- Series: T1C
- Type: Heavy Duty
Triumph® Jobber Length Drill, Heavy Duty, Series: T1C, Imperial, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, 5-1/2 in Overall Length, 4-1/16 in Cutting Depth, 4-1/16 in Flute Length, 135 deg Point, Split/Self-Centering Point, Cobalt/HSS Cutting Edge, Cobalt/HSS, Bronze Oxide, Applicable Materials: Alloy Steel, Cast Iron, Low and Medium Carbon Steel, High Alloy Steel, Steel, Stainless Steel, PH Steel, Tough, Medium and High Tensile Strength Alloy
- Application
- Item Features
For portable drilling
- Longer drill life
- Good for drilling on curved surfaces
- Improved penetration rates
- Requires less effort
- Breaks up chips
- Difficult to regrind
- Black oxide is the most basic surface treatment recommended for drilling in iron and steel
- It is not recommended for drilling in aluminum, magnesium or similar materials
- Increased tempering and stress relieving
- Reduced galling and chip welding
- Increased retention of lubricants