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  • 7/16" High Spiral Flute 3-Flat Shank Construction Reamer

7/16" High Spiral Flute 3-Flat Shank Construction Reamer

Item# 428N128 | UPC 045997096254

Availability: In stock*

*Prices and inventory are based out of our Glassboro, NJ location. Prices and inventory can vary between locations. Call your local store to confirm pricing & availability.


  • Reamer diameter: 7/16"
  • Decimal equivalent: 0.4375"
  • Shank diameter: 7/16"
  • Flute length: 3-1/2"
  • Overall length: 5-3/8"
  • Material: High speed steel
  • Finish: Black/gold oxide
  • 3 Flat straight shank
  • High spiral flute
  • Adapted for heavy-duty reaming in the fabrication of structural steel assemblies
  • Tapered at the point to facilitate entering holes which are out of alignment
  • Manufactured from a premium grade of M-7N molybdenum high speed steel
  • The nitro heavy-duty construction reamers have a ferritic nitro carburizing surface treatment which gives a hard protective layer to the reamer
  • Increases hardness (Rc 75-80) without increasing brittleness which is measurably harder than high speed steel

Additional Information

Item Number 428N128
UPC 045997096254
Weight (lbs) 0.1800
Manufacturer Drillco