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 4 mm Metric Spotting Drills / Centering Drill

Pre Drill Holes using Solid Carbide NC Spotting Drills / Centering Drills


Spotting Drills - Centering Drills
4 mm Metric Tool Shank Diameter

Spotting Drill

  • NC Spotting Drill with short flute and no land or body relief to maintain maximum rigidity.
  • For use on 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
  • 82°, 90°, 120°, 145° Included Angles.
  • 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.
  • This tool may also be used for chamfering or deburring.
  • Produced in a Premium, Ultra-Fine, Nano Grade Solid Carbide for maximum tool strength and rigidity.
  • Manufactured in house.
  • Many tool sizes in stock & ready to ship.

Order Below or Call Us: (978)567-8867.

If you do not see the size you are looking for:
Contact us or submit a custom tool drawing (download pdf).
Custom tools have a quick turn-around.

Spotting Drills - Centering Drills
4 mm Metric Tool Shank Diameter

Tool Shank Dia. Overall Length Included Angle Part No. Price
(each)
ORDER
4 mm
(.157")
50 mm
(1.97")
82° SDmet-4x50-82 $13.97
Quantity: 

4 mm
(.157")
50 mm
(1.97")
90° SDmet-4x50-90 $13.97
Quantity: 

4 mm
(.157")
50 mm
(1.97")
120° SDmet-4x50-120 $13.97
Quantity: 

4 mm
(.157")
50 mm
(1.97")
145° SDmet-4x50-145 $13.97
Quantity: 

Spotting / Centering Drills

 

See All Spot Drills

 

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