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Precision Twist 2A High-Speed Steel Jobber Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degree Point Angle

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Product Specifications
Cutting Direction
Finish Types
Uncoated (Bright)
Drill Point
Material Type
High-Speed Steel
Brand Name
Precision Twist
Flute Type
Shank Type
Style Name

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0.18mm B003JTI11Y yes $62.29 Buy Options
0.19mm B003JTI128 yes $48.76 Buy Options
0.20mm B003JTI12I Usually ships in 1 to 3 weeks $52.50 Buy Options
0.21mm B003JTI12S yes $47.48 Buy Options
0.22mm B003JTI132 yes $50.38 Buy Options
0.23mm B003JTI13C yes $50.38 Buy Options
0.24mm B003JTI13M yes $47.48 Buy Options
0.25mm B00208RZKS Usually ships in 1 to 3 weeks $42.73 Buy Options
0.26mm B0025Q6ERA Usually ships in 1 to 3 weeks $42.73 Buy Options
0.28mm B003JTI146 Usually ships in 1 to 3 weeks $39.21 Buy Options
0.29mm B003JTI14G yes $37.25 Buy Options
0.30mm B003JTI14Q yes $34.04 Buy Options
0.34mm B003JTI15A Usually ships in 1 to 3 weeks $29.42 Buy Options
0.35mm B003JTI15K Usually ships in 1 to 3 weeks $29.42 Buy Options
0.36mm B003JTI15U Usually ships in 1 to 3 weeks $29.42 Buy Options
0.38mm B003JTI164 Usually ships in 1 to 3 weeks $26.04 Buy Options
0.40mm B003JTI16E Usually ships in 1 to 3 weeks $26.04 Buy Options
0.42mm B003JTI16O yes $24.29 Buy Options
0.44mm B003JTI16Y yes $26.48 Buy Options
0.46mm B003JTI17I yes $25.30 Buy Options

Key Features

  • Jobber-length, for a wide range of applications
  • 118-degree conventional point angles, for general drilling applications
  • Round shanks, for use on a variety of tool-holding systems
  • Uncoated (bright), for use with a wide range of drilling materials
  • High-speed steel (HSS), for use on a wide variety of materials

Product Description

The Precision Twist 2A jobber drill bit is a conventional point, general purpose, round shank drill bit made of HSS with an uncoated finish. It is suitable for drilling to a depth up to four times the diameter of the drill. It is used for handheld or machine drilling. The shank diameter is the same as the drill size. It was designed for drilling holes into a wide variety of metals and synthetic materials.

The 2A series has a type N flute form, with a regular (21- to 34-degree) helix angle, and performs best when drilling into steel or cast iron. The uncoated finish helps increase chip flow in soft materials. Spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. Right-hand twist brings chips up and away from the cutting edge.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits can be used in hand-operated drills, standalone drill presses, or a lathe. They are made to DIN 338 industry standards, which ensure that drill bits around the world, confirm to the same specifications.

Together, the Precision Twist and Dormer brands represent a strong tool brand for high-productivity carbide and high-speed steel drill and tap products. Precision was founded in 1952 in Crystal Lake, IL. Dormer Tools, founded in 1913 in Sheffield, England, is known for innovative metalworking products.

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