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ALLIED MACHINE & ENGINEERING | NOMENCLATURE

ALVAN® Reamers: Replaceable Head

Expandable Heads

5000 Series

7000 Series

• 0.3780" - 1.2835" (9.600 mm - 32.600 mm) • Heads arrive set to finish diameter and specified tolerance. • Twist-lock heads for precision locaƟng of the head to the mandrel. • Best TIR repeatability from head to head providing consistent tool wear and maximized tool life.

• 0.4646" - 2.3862" (11.800 mm - 60.609 mm) • MulƟple diameters within the same arbor reduce inventory requirements. • Coolant configuraƟons for blind and through hole applicaƟons.

• Reamer head recondiƟons are available upon request. • Expands up to 1% on diameter to accommodate for wear. • ± 0.0002" (0.005 mm) tolerance capability.

Fixed Heads

7000 Series

9000 Series

• 0.4646" - 2.3862" (11.800 mm - 60.609 mm) • 2.3863" - 3.1732" (60.610 mm - 80.600 mm) diameters available as specials by contacƟng ApplicaƟon Engineering. • MulƟple diameters within the same arbor reduce inventory requirements. • Coolant configuraƟons for blind and through hole applicaƟons. • Reamer head recondiƟons are available upon request. • Nonexpanding diameter for simple on-machine replacement. • H7 tolerance capability.

• 0.4646" - 1.5984" (11.800 mm - 40.600 mm) • Heads are precision ground to finish diameter.

• Quick-change heads require minimal downƟme for replacement. • Sintered carbide or cermet design provides improved rigidity in difficult applicaƟons. • H7 tolerance capability.

Reamer Lead-In

Straight Flute

Right-hand helical

LeŌ-hand helical

T

F

N

G

L

A

V

K

E

M K

E

M

P S M H K N Best

BeƩer

Good

CoaƟngs

Uncoated

TiN

TiCN

TiAlN

Alcrona

Hardcut

R coaƟng

T coaƟng

NOTE : For more detailed descripƟons of cuƫng material, lead-ins and coaƟngs, please see pg. 23 .

Reamer Head Tolerance Ø Range

Tolerance (min/max)

Expandable Heads

Fixed Heads

inch

mm

inch

mm

inch

mm

0.3780 - 0.4645 0.4646 - 0.7086 0.7087 - 1.1811 1.1812 - 1.9685 1.9686 - 2.3858

9.600 - 11.799 11.800 - 18.000 18.001 - 30.000 30.001 - 50.000 50.001 - 60.600

-

-

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

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

-0.0002 / +0.0002

-0.005 / +0.005

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