09664 8PC SPIRAL FLUTE NITRO REAMER DISP

09664 8PC SPIRAL FLUTE NITRO REAMER DISP
Drillco 428N8D 8pc Spiral Flute Nitro Reamer Display Fractional High Speed Steel Black & Gold High Spiral Flute 3 Flats Reduced Shank; 1EA/PK

Drillco 428N8D 8pc Spiral Flute Nitro Reamer Display, Fractional, High Speed Steel, Black & Gold, High Spiral Flute, 3 Flats, Reduced Shank
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.