MG90B Series
High-Efficiency Slot Mill
Download Brochure ORDER NOWSLOT MILLING WITH STABILITY BUILT IN
with Kyocera's 6-Edge High-Efficiency Slot Mill
The MG90B delivers stable, high-efficiency slot milling with an economical 6-edge insert. Sharp cutting edges lower cutting force and spindle load, rigid insert clamping holds groove width and diameter, and large chip pockets clear chips cleanly even at high feed rates. With standard cutting widths from 0.118" to 0.472", cutting diameters from ø1.969" to ø6.299", and custom configurations available, the MG90B is built to fit your slotting and grooving applications.
Economy + Sharpness
Six usable cutting edges per insert improve insert utilization and reduce tooling costs. A staggered arrangement positions inserts on both sides of the cutter body, and sharp edge geometry minimizes cutting force for smooth, stable slot milling with lower burr height.
Rigidity + Chip Control
A wide support surface directly beneath the cutting edge withstands cutting loads and minimizes insert movement for accurate groove width and cutting diameter. Wide chip pockets and recessed geometry prevent chip packing at high feed rates and leave a clean groove bottom finish.
Economical 6-Edge Insert Design
Six usable cutting edges improve insert utilization and reduce tooling costs. The staggered insert arrangement positions inserts on both sides of the cutter body.
Sharp cutting-edge geometry minimizes cutting forces and reduces spindle load for smooth, stable machining.
Vc = 520 sfm, ae = 0.591", Dry (Air Blast), 1049 Steel, ø80mm (3.150") (5 Inserts), Cutting Width 6mm (0.236")
Rigid Insert Clamping for High-Efficiency, Stable Machining
A wide support surface directly beneath the cutting edge firmly withstands cutting loads.
Minimizes insert movement for improved cutting diameter and groove width accuracy.
Large Chip Pockets for Smooth Chip Evacuation
Wide chip pockets and recessed geometry promote smooth, efficient chip evacuation, preventing chip packing even at high feed rates and producing an excellent groove bottom finish.
Next-Generation PVD coating MEGACOAT NANO EX provides longer tool life
Kyocera's proprietary coating improvements increase tool life longevity and maximize wear resistance
Case Study - Carbon Steel Joint Component
MG90B delivers stable, high-quality machining, achieving 2,000 parts per cutting edge and 1.3× longer tool life. (User Evaluation)
Vc = 660 sfm (n = 1,000 rpm), Vf = 7.9 ipm (fz per flute = 0.002 ipt), ap × ae = 3 × 15mm (0.118" × 0.591")
Wet, ø63mm (2.480") (8 Inserts), Custom Specification
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