KEUE CNC Small-hole Grooving Tool Holder Comma Insert Parting Tool Cemented Carbide MB-05GR/07GR/09GR External Turning Tool for
This MB series comma blade & small bore internal grooving tool system includes MB-05GR, MB-07GR and MB-09GR specifications, with precision tool holders matched to dedicated deep-groove comma inserts. It is engineered for grooving, slotting and profiling in tiny inner bores of various metal workpieces on CNC lathes.
The ultra-compact shank design delivers exceptional rigidity and vibration damping even in extremely small-diameter bores. The precision-ground insert pocket ensures accurate blade positioning and stable clamping, guaranteeing consistent dimensional accuracy and smooth surface finish in deep groove operations.
Fully interchangeable with standard GR-type comma grooving inserts, these holders support quick blade replacement to minimize machine downtime. They are widely used in precision machinery, 3C electronics and medical device industries for high-precision small component inner bore machining.
