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Precision Twist R40 High Speed Steel Short Length 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)
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 76 Next 20 »
3/64" R40 Inch 1/2" 1-3/8" 12 40003 B003JTIGLY Usually ships in 9 to 11 days $20.23 Buy Options
1/16" R40 Inch 5/8" 1-5/8" 12 40004 B0025Q8UHC yes $16.92 Buy Options
5/64" R40 Inch 11/16" 1-11/16" 12 40005 B003JTIGQY Usually ships in 9 to 11 days $19.46 Buy Options
3/32" R40 Inch 3/4" 1-3/4" 12 40006 B003JTIGL4 Usually ships in 9 to 11 days $19.46 Buy Options
7/64" R40 Inch 13/16" 1-13/16" 12 40007 B0026H3N36 Usually ships in 9 to 11 days $19.46 Buy Options
1/8" R40 Inch 7/8" 1-7/8" 12 40008 B00208VJ2I Usually ships in 9 to 11 days $19.23 Buy Options
9/64" R40 Inch 15/16" 1-15/16" 12 40009 B0026HAN7K yes $16.82 Buy Options
5/32" R40 Inch 1" 2-1/16" 12 40010 B0026HAN8Y yes $19.79 Buy Options
11/64" R40 Inch 1-1/16" 2-1/8" 12 40011 B0026H5NN4 yes $20.46 Buy Options
3/16 " R40 Inch 1-1/8" 2-3/16" 12 40012 B002090QNU yes $20.69 Buy Options
13/64" R40 Inch 1-3/16" 2-1/4" 12 40013 B0026H756C yes $21.93 Buy Options
7/32" R40 Inch 1-1/4" 2-3/8" 12 40014 B0025QGAKG yes $24.63 Buy Options
15/64" R40 Inch 1-5/16" 2-7/16" 12 40015 B0026H7580 yes $24.40 Buy Options
1/4" R40 Inch 1-3/8" 2-1/2" 12 40016 B00208VJBY Usually ships in 9 to 11 days $26.59 Buy Options
17/64" R40 Inch 1-7/16" 2-5/8" 12 40017 B0025QC9M4 yes $27.67 Buy Options
19/64" R40 Inch 1-9/16" 2-3/4" 12 40019 B0026HANDY yes $31.63 Buy Options
5/16" R40 Inch 1-5/8" 2-13/16" 6 40020 B002090R4S yes $20.97 Buy Options
21/64" R40 Inch 1-11/16" 2-15/16" 6 40021 B0026H5NSE yes $22.15 Buy Options
11/32" R40 Inch 1-11/16" 3" 6 40022 B00208VJS2 Usually ships in 9 to 11 days $25.08 Buy Options
23/64" R40 Inch 1-3/4" 3-1/16" 6 40023 B002090RIE yes $25.98 Buy Options

Key Features

  • Short-length drill bits, also called stub length, provide better rigidity and increased strength
  • 118-degree conventional point angles good for general drilling applications
  • Round shanks can be used with a variety of tool-holding systems
  • Uncoated (bright), economical and useful with a wide range of drilling applications
  • High-speed steel (HSS), for use on a wide variety of materials

Product Description

The Precision Twist R40 stub length, 118-degree conventional point, general-purpose, round shank drill bit made of high-speed steel (HSS) with uncoated(bright) finish. It is suitable for drilling holes to a depth up to two-and-a-half times the diameter of the drill size. The shank diameter is the same as the drill size.

The 118-degree, conventional-point design is the most commonly accepted standard for drilling holes in a variety of material, such as metal, wood, and synthetics, with best performance in steel, stainless steel, cast iron, and unalloyed titanium. It comes with an uncoated (bright) finish, which helps keep costs down, yet provides acceptable performance in most situations. For drill bit sizes larger than 45/64 inch, the drills have a black oxide finish, which gives a strongly adhering surface treatment that acts to retain cutting fluid and prevent chip to tool welding, reducing the formation of a built-up 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 DIN 1897 industry standards (metric sizing), which helps 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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