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Jobbers-Length Twist Drill Bit: Individual, Regular Spiral, 135° Point Angle, Split, Black & Gold Oxide, 7/8 in Flute Lg

Item # 508K751

$1.60 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: Wire Gauge
Cutting Direction: Right Hand
Drill Diameter: No. 54
Decimal Equivalent: 0.055 in
Flute Length: 7⁄8 in
Overall Length: 1 7⁄8 in
Quantity: Individual
For Use On (Best): Steel; Stainless Steel; Cast Iron
Shank Type: Round
Aircraft Drill: No
Depth x Diameter Ratio: 3.5xD
Double Margin: No
Drill Bit Style: Spiral
Drill Diameter Tolerance: 0.0000 in to +0.0005 in
Drill Length Type: Jobbers Length
Drilling Application: Conventional Drilling
For Use On (Good): Auminum; Copper; Brass
For Use On ISO Code (Best): K; M; P
For Use On ISO Code (Good): N
Helix Angle: 32 °
Material Grade: M50
Number of Flutes: 2
Powdered Metal Material: No
Series: 1878
Shank Diameter: 0.055 in
Sheeter Drill: No
Spiral Direction: Right Hand
Through Coolant: No
Web Construction: Parallel
Web Thinning: Web-Thinned

Compliance and Restrictions

Country Of Origin

  • USA

About Jobbers-Length Drill Bits

The most common drill bit length, jobbers-length bits provide a good balance of strength and accuracy for versatility in a wide range of drilling applications.

Use these general purpose high speed steel drill bits in a variety of materials, ranging from soft steels, carbon steels, wood, and plastic to nonferrous metals such as aluminum, brass, bronze, and copper.