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Precision Twist R10 High Speed Steel Jobber Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 118 Degree Point Angle

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Product Specifications
Cutting Direction
Finish Types
Black Oxide
Shank Type
Material Type
High-Speed Steel
Drill Point
Cutting Angle
118  Degrees
Brand Name
Precision Twist
Flute Type

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Size Mfg Series # System of Measurement Flute Length Overall Length Pkg Qty Mfr Part # ASIN

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Currently showing 1-20 of 31 Next 11 »
1/64" R10 Inch 3/16" 3/4" 12 10001 B003JTI7ZY yes $26.34 Buy Options
3/64" R10 Inch 3/4" 1-3/4" 12 10003 B0025QC0IM yes $19.26 Buy Options
3/32" R10 Inch 1-1/4" 2-1/4" 12 10006 B00208ZYJW yes $18.53 Buy Options
7/64" R10 Inch 1-1/2" 2-5/8" 12 10007 B002096W6U yes $19.26 Buy Options
5/32" R10 Inch 2" 3-1/8" 12 10010 B001VY095A yes $20.04 Buy Options
3/16 " R10 Inch 2-5/16" 3-1/2" 12 10012 B001VY1HZ6 yes $22.24 Buy Options
13/64" R10 Inch 2-7/16" 3-5/8" 12 10013 B001VXW5XA yes $23.53 Buy Options
7/32" R10 Inch 2-1/2" 3-3/4" 12 10014 B001VY0978 yes $25.34 Buy Options
15/64" R10 Inch 2-5/8" 3-7/8" 12 10015 B002096WKG yes $27.29 Buy Options
19/64" R10 Inch 3-1/16" 4-3/8" 12 10019 B002091DVO yes $33.98 Buy Options
5/16" R10 Inch 3-3/16" 4-1/2" 6 10020 B002KNDFY8 yes $23.67 Buy Options
21/64" R10 Inch 3-5/16" 4-5/8" 6 10021 B002096WW4 yes $25.27 Buy Options
23/64" R10 Inch 3-1/2" 4-7/8" 6 10023 B002091E4A yes $29.13 Buy Options
13/32" R10 Inch 3-7/8" 5-1/4" 6 10026 B001VXU4ME yes $31.84 Buy Options
27/64" R10 Inch 3-15/16" 5-3/8" 6 10027 B001VXU4NS yes $34.92 Buy Options
7/16" R10 Inch 4-1/16" 5-1/2" 6 10028 B001VXU4OC yes $36.00 Buy Options
29/64" R10 Inch 4-3/16" 5-5/8" 6 10029 B001VY33EE yes $40.83 Buy Options
15/32" R10 Inch 4-5/16" 5-3/4" 6 10030 B001VY09CI yes $43.00 Buy Options
31/64" R10 Inch 4-3/8" 5-7/8" 6 10031 B001VXU4PQ yes $43.76 Buy Options
33/64" R10 Inch 4-13/16" 6-5/8" 1 10033 B00208ZZWI yes $20.45 Buy Options

Key Features

  • Black oxide finish, for improving lubricity, resisting corrosion, and resistances to chipping or flaking
  • 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
  • High-speed steel (HSS), for use on a wide variety of materials

Product Description

The Precision Twist R10 jobber-length, uncoated bright finish, general-purpose, round-shank drill bit drills holes into a wide variety of metals and synthetic materials. It can drill to a depth up to four times the diameter of the drill size. The shank diameter is the same as the drill size.

The R10 series has a type N flute form, with a regular helix (21 to 34 degrees) angle, with best performance drilling into steel, and cast iron. Uncoated (bright) tools have no finish or coating. They are a common choice for general use applications. 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 are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. These drill bits have a right-hand twist that brings chips up and away from the cutting edge. They are made to ANSI (fractional sizing) industry standards, which ensure that drill bits around the world conform to the same specifications.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. They have locations around the world, and provide tools adhering to ANSI, NAS, and DIN standards.

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