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Precision Twist DS 90 Solid Carbide Spotting Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 90 Degree Point Angle, 1/2"

4.5 out of 5 stars 2 customer reviews

List Price: $74.30
Price: $59.60 & FREE Shipping. Details
You Save: $14.70 (20%)
Only 1 left in stock (more on the way).
Ships from and sold by Amazon.com.
1/2 in
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  • Intermediate-length spotting drill bits, for starting holes
  • 90-degree conventional point angles, for reduced stress on drill’s
  • Round shanks, for use on a variety of tool-holding systems
  • Uncoated (bright), for use with a wide range of drilling materials
  • Carbide, for use on abrasive materials and high cutting temperatures

Product Specifications
Part Number DS901/2
Number of Items 1
UPC 086071033420
Cutting Angle 90
Cutting Diameter 1/2
Cutting Length 1-1/4
EAN 0086071033420
Item Diameter 0.5000
Length 3
Manufacturer Series Number DS-90
Measurement System Inch
Model Number 003342
Size 1/2 in
Tool Flute Length 1-1/4
UNSPSC Code 20121600
Specification for this product family
Brand Name Precision Twist Drill
Cutting Direction Right-Hand
Finish Type Uncoated (Bright)
Material Carbide
Point Type Conventional
Shank Type Round
Style Spotting
Tool Flute Type Spiral


Save 30 to 40% in home and outdoors
$59.60 & FREE Shipping. Details Only 1 left in stock (more on the way). Ships from and sold by Amazon.com.

Product description

Size:1/2 in

The Precision Twist DS-90 intermediate length bit is a round shank, spotting drill bit made of Carbide with a uncoated (bright) finish and is used for starting a hole. It is suitable for drilling to a depth up to one times the diameter of the drill. The shank diameter is the same as the drill size. Suitable for drilling to a wide variety of metals and synthetic materials with best performance in steel, stainless steel, cast iron, titanium, and nickel.

The DS-90 series made of durable carbide material, with a 90-degree conventional point geometry, should only be used to start holes; do not go deeper than the diameter of the drill bit. While shorter than a Jobber length drill bit, the length gives extra reach than a stub length drill bit, while maintaining stability when starting the hole. The bright finish help 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 machine tool called a lathe, to drill a hole. 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 the chips up and away from the cutting edge. They are made to DIN 340 industry standards, which ensure that drill bits around the world, confirm to the same specifications.

Dormer Pramet manufactures cutting tools under the following brands: Precision Twist Drill, Dormer, Union Butterfield and Pramet. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.


Product details

Size: 1/2 in
  • Shipping Weight: 5.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B003JTI948
  • Item model number: 003342
  • Average Customer Review: 4.5 out of 5 stars 2 customer reviews
  • Amazon Best Sellers Rank: #373,707 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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on August 27, 2015
Size: 1/8 in|Verified Purchase
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on October 30, 2014
Size: 1/2 in
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Precision Twist DS 90 Solid Carbide Spotting Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 90 Degree Point Angle, 1/2"
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