Maykestag HSS-E NC machine reamer 4.90mm H7 left-hand spiral
Precision 4.90mm H7 NC machine reamer manufactured from HSS-E, featuring a
left-hand spiral and six cutting edges for accurate finishing of pre-drilled
holes.
The Maykestag Code 3080 is an NC machine reamer manufactured from HSS-E for
precision finishing of existing holes. Its left-hand spiral and six cutting
edges provide controlled cutting action for reliable hole finishing. With a
4.90mm H7 reaming diameter, 5.00mm nominal shank and catalogue-specified
dimensions, this reamer is suited to precision machining applications where
accurate hole sizing and a high-quality finished surface are required. The
NC-compatible design is similar to DIN 212 and features a straight nominal
shank diameter for standardised high-precision toolholding.
What is a machine reamer? A machine reamer is a precision
cutting tool used to accurately finish an existing hole to a specified
diameter and improve its dimensional accuracy and surface finish. Unlike a
drill, a reamer is designed to remove a relatively small amount of material
from an already prepared hole. Machine reamers are commonly used where
consistent hole dimensions are important.
Product highlights
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HSS-E construction: Cobalt-alloyed high-speed steel
provides enhanced heat resistance and wear resistance for demanding
precision reaming applications.
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4.90mm reaming diameter: Precision cutting diameter for
finishing small-diameter holes.
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ISO H7 tolerance: Designed for precision finishing to the
specified H7 hole tolerance.
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Left-hand spiral: The left-hand spiral geometry provides
controlled chip movement during reaming.
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Six cutting edges: Six-flute geometry supports balanced
cutting and consistent hole finishing.
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NC-compatible design: Geometry similar to DIN 212, with a
straight nominal shank diameter for standardised precision toolholding.
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5.00mm nominal shank: Suitable for appropriate
high-precision toolholding systems.
Why choose Maykestag?
Maykestag develops precision cutting tools for professional machining
applications, with attention to cutting geometry, tool material and
dimensional accuracy. These factors are important for achieving consistent
machining results, tool life and finished-hole quality.
The Code 3080 series combines HSS-E tool material with H7
reaming geometry and a left-hand spiral configuration, providing a practical
solution for precision hole finishing in machine-based applications.
