Drillco

4285N Series Nitro Construction Reamers

item code: 428N144

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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. This increases hardness (Rc 75-80) without increasing brittleness, which is measurably harder than high speed steel. Body and clearance are gold and black surface treated for maximum lubricity.

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Product details

11/16,High Sp Fl 1/2" SH NITRO Construction Reamer
  • Fractional
  • High Speed Steel
  • Black & Gold
  • High Spiral Flute
  • 3 Flats, Reduced Shank
  • Pack Qty: 1
  • Overall Length: 6.3/8
  • Flute Length: 4.1/2
  • Shank Size: 1/2