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Greenfield Maintenance-Length Twist Drill Bit: Regular Spiral, Black & Gold Oxide, 135° Point Angle, High Speed Steel, Split, Round, 5/16 in Drill Dia

Item # 667Z446

$4.79 Each

Product Specs

Flute Type: Spiral
Point Angle: 135 °
Point Type: Split
Surface Finish: Black & Gold Oxide
Bit Material: High Speed Steel
Drill Diameter Measurement System: Inch
Shank Type: Round
Drill Diameter: 5/16 in
Decimal Equivalent: 0.3125 in
Flute Length: 2 1⁄2 in
Overall Length: 4 in
Quantity: Individual
For Use On (Best): Steel; Stainless Steel; Cast Iron
Cutting Direction: Right Hand
Aircraft Drill: No
Depth x Diameter Ratio: 3.5xD
Double Margin: No
Drill Bit Style: Spiral
Drill Diameter Tolerance: 0.000 in to +0.001 in
Drill Length Type: Maintenance Length
Drilling Application: Conventional Drilling
For Use On (Good): Auminum; Copper; Brass
For Use On ISO Code (Best): P; K; M
For Use On ISO Code (Good): N
Helix Angle: 32 °
Material Grade: M50
Number of Flutes: 2
Powdered Metal Material: No
Series: 1875
Shank Diameter: 5⁄16 in
Sheeter Drill: No
Spiral Direction: Right Hand
Through Coolant: No
Web Construction: Parallel
Web Thinning: Web-Thinned
Manufacturer Part Number: C23846

Compliance and Restrictions

Country Of Origin

  • USA

About Maintenance-Length Drill Bits

Also called mechanics-length drill bits, maintenance-length drill bits are slightly shorter than the standard jobbers-length drill bit, providing better rigidity but less drilling depth.