1Excellent Alloy Steel Material: This metal lathe tool is made of excellent alloy steel material, which is sturdy, wear resistant, durable and adaptable. 2Good Performance: This turning tool insert holder set has high clamping strength, high impact resistance, good toughness and hardness, and long service life. 37 Different Angles: This lathe turning insert tool features 7 different angles which are very practical for accurate cutting and covering every angle. 4Wide Application: This turning toolholder set has a wide range of applications and is suitable for a variety of machining environments, even under very, very harsh conditions. 5Compact And Portable: This lathe boring bar turning tool is small in size and light in weight, which is very convenient to carry around and use.