Sandvik 870-1450-14-KM 3334 CoroDrill 870 Carbide Drilling Insert (2pc)

This is a new Sandvik Coromant 870-1450-14-KM carbide drilling insert in grade 3334, designed for use with the CoroDrill 870 indexable insert drill system. The ordering code breaks down as follows: 870 = CoroDrill 870 system, 1450 = 14.50 mm diameter range, 14 = insert size/seat designation, KM = cutting geometry (KM chipbreaker, positive cutting action optimized for cast iron and hardened materials in ISO K work material class). Grade 3334 is a PVD-coated cemented carbide grade engineered specifically for cast iron drilling (ISO K2.2 material group, up to 245 HB hardness), featuring a tough substrate with a wear-resistant coating. The label confirms recommended cutting data: feed rate fn = 0.33 mm/rev (range 0.21–0.48 mm/rev) and cutting speed vc = 130 m/min (range 170–90 m/min). Each package contains two inserts (one peripheral/outer insert and one central/inner insert) as visible in the photos, and the inserts are secured via a torx clamping screw; they are manufactured in Sweden and are compatible with CoroDrill 870 drill bodies sized for the 14.50 mm diameter range.

Product Specifications