TURNING INSERTS ApplicationLight CuttingMedium Cutting ToleranceM ClassG ClassM Class ap (inch)ap (inch)ap (inch)ap (inch)ap (inch)ap (inch)ap (inch)ap (inch)ap (inch) TURNING INSERTS CLASSIFICATION 5° POSITIVE INSERTS WITH HOLE A Breaker Nameand FeaturesPicture Cross SectionGeometry Light cutting of carbon steel, alloy steel, mild steel Carbon Steel·Alloy Steel Corner and stainless steel The double breaker design promotes chip discharge for mild steel Flank low depth of cut a applications. f (IPR) VBMT221SV Light cutting of difficult-to-cut materials Difficult-to-Cut Materials Corner Ideal for heat-resistant alloy and titanium alloy The curved cutting edges support changes in cutting depth, smoothchip discharge and disposal. Flank The high rake angle is highly suitable for finish-light cutting difficult- to-cut materials. f (IPR) VBGT331MJ Light cutting for titanium alloy Titanium alloy Corner Ideal for aluminum and copper. The sharp edge produces excellent surface finishes.The curved edge allows smooth chip discharge. Flank The polished insert face prevents built up edge. f (IPR) VBGT331MJ-P MK Recommendation for medium cutting of cast iron Cast Iron 3 Flank Optimum balance between sharpness and high edge strengthfor general use. 2 18° 0.1 1 0 0.1 0.2 0.3 0.4 f (IPR) VBMT331MK MP Recommendation for light cutting of carbon andalloy steel Carbon Steel·Alloy Steel .004" Corner18° Small, flat, land at cutting edge provides an excellent balance ofwear and fracture resistance. 18° .004" Flank The wide chip gullet decreases cutting resistance, reduces vibration and chip jamming in elevated depth of cut applications. f (IPR) VBMT331MP MM Recommendation for medium cutting of stainless steel Stainless Steel .004" Corner18° Good balance of wear resistance and fracture resistance because of the flat land cutting edge.A wide chip pocket controls increasing of the cutting resistance and 18° .004" Flank reduces vibration and chip jamming even at large depth of cut. f (IPR) VBMT331MM MS Recommendation for medium cutting ofdifficult-to-cut materials Difficult-to-Cut Materials .004" Corner18° A wide chip pocket controls increasing of the cutting resistance andreduces vibration and chip jamming even at large depth of cut.18°.004"Flank f (IPR) VBMT331MS Standard Medium cutting of carbon steel, alloy steel andstainless steel Carbon Steel·Alloy Steel Corner The high rake angle combined with a small flat land provide a balance of strength and sharpness. Flank f (IPR) VBMT331 Medium cutting of carbon steel, alloy steel, Carbon Steel·Alloy Steel Corner mild steel and stainless steel A positive land and the high rake angle provides sharp cutting edgeperformance. Flank The double breakers and round-shaped dots in the rake face provide a wide range of chip control. f (IPR) VBMT331MV A060