Mitsubishi CCMW09T308 MC5015 Flat-Top Carbide Insert for Cast Iron (10pcs) DNMG150404-DM YBC251 TT9080 is excellent for pre-hardened

TT9080 is excellent for pre-hardened steels (up to 45-48 HRC)

"Eliminated all chatter in micro-boring components

Cermets are harder than standard carbide and offer superior chemical stability

Versatile Cutting Width: With a cutting width range of 0

"Perfect for profiling 4140 steel

Mitsubishi CCMW09T308 MC5015 Flat-Top Carbide Insert for Cast Iron (10pcs) DNMG150404-DM YBC251 TT9080 is excellent for pre-hardenedCCMW09T308 MC5015 Nano Texture Technology High Speed Cast Iron Master Flat Top Geometry Next Gen Grade & Structural Integrity MC5015 Grade (Nano Texture CVD): This is Mitsubishis premium K Class grade. It features an ultra fine grain Nano Texture Technology coating that creates an incredibly slick and hard barrier. This specifically prevents the abrasive graphite flakes in cast iron from scouring the carbide substrate, allowing for much higher cutting