TG-NOM_US-EN

ALLIED MACHINE & ENGINEERING | NOMENCLATURE

Reamers: Replaceable Heads

Fixed

Build Your Part No. 1 Series

7400 Series

7700 Series

2 Flute Style

Straight Flute

Helical Flute (Left Hand)

Your flute style is based on your series selection (above)

3 Carbide Grade and Coating Codes

These are the combinations of

grades and coatings you can choose from

Uncoated

TiN

TiCN

TiAlN

Alcrona

Carbide Cermet

KL SV

KN SN

KC SC

KA SA

KK SK

4 Lead-in Recommendations

T F N G L

A V K

E

M

P S M H K N

P S M H K N

5 Diameter (H7 Tolerance)

Imperial (in)

Metric (mm)

D 1 Range

Tolerance (min/max)

D 1 Range

Tolerance (min/max)

0.4656 - 0.7086 0.7087 - 1.1811 1.1812 - 1.9685 1.9686 - 2.3858

+0 / +0.0007 +0 / +0.0008 +0 / +0.0010 +0 / +0.0012

11.800 - 18.000 18.001 - 30.000 30.001 - 50.000 50.001 - 60.600

+0 / +0.018 +0 / +0.021 +0 / +0.025 +0 / +0.030

For the diameter portion of the item number, refer to the following tables:

Best

Better

Good

I7400-KNG-20000

Ordering Example: The customer needs the following: • Straight fluted reamer head • Fixed style • Carbide • TiN coating • G lead-in • 2.0000" diameter • H7 tolerance +0/ +0.0012" for 2.0000" diameter

Imperial Diameter

Straight Flute

Diameter

Fixed Style

F Lead-in

Carbide

TiN Coating

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