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Extended-Length Twist Drill Bit: Individual, Black Oxide, High Speed Steel, 118° Point Angle, Conventional, 3 5/8 in Flute Lg

Item # 820W958

$9.69 Each

Product Specs

Surface Finish: Black Oxide
Bit Material: High Speed Steel
Point Angle: 118 °
Point Type: Conventional
Drill Diameter Measurement System: Inch
Drill Diameter: 13/64 in
Decimal Equivalent: 0.2031 in
Flute Length: 3 5⁄8 in
Overall Length: 6 in
Quantity: Individual
For Use On (Best): Steel; Stainless Steel; Cast Iron
Aircraft Drill: No
Cutting Direction: Right Hand
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: Taper Length
Drilling Application: Conventional Drilling
Flute Type: Spiral
For Use On (Good): Brass; Copper; Auminum
For Use On ISO Code (Best): K; M; P
For Use On ISO Code (Good): N
Helix Angle: 32 °
Material Grade: M2
Number of Flutes: 2
Powdered Metal Material: No
Series: 120
Shank Diameter: 0.2031 in
Shank Type: Round
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 Extended-Length Drill Bits

Access hard-to-reach workpieces and drill deeper holes with these extra long bits. All bits are made from high speed steel, which is the most common choice for general-purpose drilling applications. They are well-suited for drilling into soft steels, carbon steels, wood, plastic, and nonferrous metals such as aluminum, brass, bronze, and copper.

Finish Features

Bright (uncoated) finish is a smooth, polished finish that allows for efficient chip removal. It's a good choice for everyday drilling applications, particularly in softer materials such as aluminum, wood, and plastic. Black oxide coating increases wear resistance for extended tool life and helps retain lubricants, improving chip flow and drilling performance. This coating is recommended when drilling ferrous metals and should not be used on nonferrous metals.

With a longer overall length than a jobbers length bit and a longer flute length than a jobbers length bit or an aircraft length bit, taper length drill bits can drill deeper holes than jobbers length or aircraft length bits but are more prone to breaking.