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  • Precision Twist 1511 High Speed Steel Extra Long Length Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degree Point Angle
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Precision Twist 1511 High Speed Steel Extra Long Length Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degree Point Angle

Available in multiple versions

1 customer review

Price: $28.74 - $201.49
Product Specifications
Brand Name Precision Twist
Material Type High-Speed Steel
Finish Types Uncoated (Bright)
Cutting Angle 118  Degrees
Cutting Direction Right-Hand
Drill Point Conventional
Flute Type Spiral
Shank Type Round
UNSPSC Code 20121600

The Precision Twist 1511 long length, 118-degree conventional point, general-purpose round sha... Read full product description



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1 in B002095VGC
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$201.49
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1/2 in B002091PYE
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$74.04
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1/4 in B00209B120
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$44.98
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11/16" B0025QHV4A
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$121.84
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11/32" B0025QBYHA
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$28.74
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13/16" B0026H7GK2
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$91.41
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15/16" B00209B1TI
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$188.52
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17/32" B0025Q8K86
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$90.82
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21/32" B002E8QNRA
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$106.84
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23/32" B003JTI0KG
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$71.12
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25/32" B0025Q8KAO
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$140.25
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3/16 in B002093QBE
In Stock (2)
$29.40
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3/4" B001VXY7PE
In Stock (1)
$128.87
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3/8 in B00209793A
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$53.05
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5/16" B002095URM
In Stock (1)
$50.55
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5/8" B002091Q5W
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$94.83
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7/16" B00209B1DY
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$64.21
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7/8" B0020979NK
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$169.33
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9/16" B0026HCVMA
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$90.25
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Product Features

  • Extra-length, for deeper holes
  • 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 Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004P8JRGG
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

The Precision Twist 1511 long length, 118-degree conventional point, general-purpose round shank drill bit made of high-speed steel (HSS) with uncoated finish is suitable for drilling holes to a depth up to 15 times the diameter of the drill size. The shank diameter is the same as the drill size.

The 1511 series has a type N flute form (a regular helix angle of 21 to 34 degrees) which is good for drilling in a variety of materials, such as metal, wood, and synthetics. For drill bit sizes larger than 17/32 of an inch (13.49375mm/0.53125) inches, the drills have a black oxide (also called steam tempering) finish. This finish 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. All other sizes have an uncoated finish, which helps keep costs down, yet provides acceptable performance in most situations.

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. They are made to ANSI (fractional sizing) industry standards, which help 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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Most Helpful Customer Reviews

By D. Hensley on November 27, 2010
Size: 5/8" Verified Purchase
If you need to drill an extra deep hole this will do it. Seems to be of high quality steel, works well. If you need a extra long drill that will fit in a normal chuck (needs to be a 5/8" or larger chuck, of course), that will last, given proper care, this is the drill bit for you.
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