AMPC-C_DE

REAMING | ALVAN® Reaming Systems by S.C.A.M.I.

Diameter Measurement

A

Dimples

DRILLING

180°

Using the Measuring Teeth With the reamer assembled, use a preseƩer or micrometers to measure the reamer diameter using the opposing 180° teeth. A preseƩer (with at least 2 µm resoluƟon) is preferred to avoid chipping the cuƫng edges. NOTE: Only two cuƫng teeth are 180° opposed. The asymmetric spacing of the other cuƫng teeth will not induce harmonics, which prevents the tool from creaƟng chaƩer. The red dimples indicate which two opposing teeth are the measuring teeth. All S.C.A.M.I. Reamers have a dimple to indicate the 180° opposing teeth.

B

BORING

C

REAMING

Measuring Teeth

Measuring Teeth

Measuring Teeth

Where to Take the Measurement When measuring the diameter, take the measurement from the area of the cuƫng tooth just below the transiƟon from the lead angle to the OD edge. See the illustraƟon below. The back side of the OD edge has a back taper. This is why measuring from the locaƟon just below the lead angle/OD edge transiƟon point results in the most accurate measurement (before the taper begins).

D

BURNISHING

Lead Angle

TransiƟon Point

E

Actual Cuƫng Area

Diameter Measurement LocaƟon

THREADING

OD Edge

X

SPECIALS

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