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This is a Micro 100 QBB-180750X solid caroffere “Quik” (quick-change) boring bar.
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Key specifications
Spec
Value
Minimum bore diameter
0.180″
Maximum bore depth
0.750″ (¾″)
Shank diameter
¼″
Overall length
2″
Corner radius
0.005″
Coating
AlTiN (the “X” suffix indicates coated)
Cutting direction
Right-hand
Material
Solid caroffere
Series
QBB (Quick Change Boring)
It is a precision internal boring tool intended for small-diameter work, commonly used on Swiss-type screw machines and small CNC lathes/machining centers. The AlTiN coating improves wear resistance and lubricity when machining steels, stainless steels, tool steels, nickel alloys, and titanium.
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The orange plastic tube is the original packaging from Micro 100 (made in the USA).
