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2L inc.

4 Kane Industrial Drive
Hudson, MA 01749
Tel: (978)567-8867
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Spotting Drills / Centering Drills

Solid Carbide Spotting Drills / Centering Drills for Pre-Drilling Holes


Spotting Drills / Centering Drills

Standard & Metric Sizes Available

Page Down for Sizes
Spoting Drill
For Spot Drilling, Deburring or Chamfering


Included Angles
90°, 120°, 145°


Made of submicron grade carbide

NC Spotting Drills have short flutes and no land or body relief to maintain maximum rigidity.

Spot Drills are for use on numerous materials including Aluminum, Brass, Plastic, Wood as well as more difficult materials such as Steel, Stainless Steel, Composites, Inconel, and Titanium.

When tight tolerance hole locations are required, spot drilling is required to prevent the drill from walking.  Spotting drills improve the accuracy of the secondary drilled hole.

Each size may be used on a wide range of hole diameters.

The typical diameter of a spot drilled hole is 50-75% of the secondary final drill diameter.

For softer materials 90° points are typically used to start drills up to 120°.

120° points are used  to start drills above 120° (typically 135° drills).  This allows the outer cutting edge of the secondary drill to start cutting before the point touches.

For tougher and harder materials and for high performance secondary drills the 145° point is recommended. This allows the point of the secondary drill to touch before the outer cutting edge. This helps to reduce chatter and prevent chipping of the secondary drillís cutting edges.

This tool may also be used for chamfering or deburring.

Order below.
- We manufacture in house.
- We keep many tool sizes in stock.

Don't see the size you are looking for?
- Contact us or, submit a custom tool request.
- Custom tools have a quick turn-around.



Spotting Drills
Available Shank Diameters
1/8" (.125") Shank Diameter
90°, 120°, 145° angles More Info
11/64" (.1719") Shank Diameter
90°, 120°, 145° angles More Info
3/16" (.1875") Shank Diameter
90°, 120°, 145° angles More Info
1/4" (.250") Shank Diameter
90°, 120°, 145° angles More Info
3/8" (.375") Shank Diameter
90°, 120°, 145° angles More Info
1/2" (.500") Shank Diameter
90°, 120°, 145° angles More Info
9/16" (.5625") Shank Diameter
90°, 120°, 145° angles More Info
3/4" (.750") Shank Diameter
90°, 120°, 145° angles More Info
4 mm (.157") Shank Diameter
90°, 120°, 145° angles More Info
6 mm (.236") Shank Diameter
90°, 120°, 145° angles More Info

 

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