HSS 78-ZR Step Reamer 3–Flats on Shank
78-ZR Step Reamer Zirconium Nitride
— Quickly start, Enlarge and deburr holes in material up to 1/2" thick.
— Reamer has five hole enlargement steps for accurate hole enlargement.
— 90° notch point starts holes easily.
— Zirconium Nitride – excellent for aluminum magnesium, titanium alloys
and increased lubricity.
— Proudly manufactured in the USA.
PDF — HSS Type 78-ZR Step Reamer 3–Flats on Shank
Step reamers should be ran at 1/2 the R.P.M. suggested for a corresponding twist drill size. Coolant feeding reamers: Coolant or cutting tool lubricant induced thru the reamer should be utilitized when possible. Benefits include better finishes, superior tool life and the ability to increase speeds and feeds. All tools are constructed with left-hand spiral and right-hand cut. The left-hand spiral eliminates the tendency of the reamer to pull itself into the holes.
2pc. – 3pc. Zirconium Nitride Step Reamer Set
3pc. Type 78-ZR Step Reamer Set
— Part# 99980
— Fractional sizes include: 5/16", 9/16", 13/16".
— Secure, snap-lock plastic cover.
— Proudly manufactured in the USA.
2pc. Type 78-ZR Step Reamer Set
— Part# 99990
— Fractional sizes include: 5/16", 9/16"
— Secure, snap-lock plastic cover.
— Proudly manufactured in the USA.
PDF — 2pc. / 3pc. Type 78-Zr Zirconium Nitride Step Reamer Set