Description
10pc Kyocera GMM3020 040MS TN90 – External Grooving Insert (M Class, General Purpose) Insize Setting Ring Gauge 28mm Series 6312 28 accurate thread form The Haron 63W plastic 3227 12 Acrow B.BSD.HD6.64 – Heavy Duty Insert Holder for BSD64 Fine Boring Heads accurate thread form TN90 Grade: Fine grain uncoated carbide providing sharp cutting performance and high dimensional accuracy