Horn RU105.4604.3.5 TH35 Supermini Carbide Boring Bar Insert Kit (2pc)

This is a new Horn Supermini system kit, part number RU105.4604.3.5 TH35, consisting of two complete boring bar assemblies — each comprising a cylindrical shank holder with an integrated single-tooth carbide insert — packaged in Horn's standard twin-compartment plastic case. The "RU105" prefix designates a Supermini system 105 boring/internal turning holder; "4604" encodes the insert geometry variant for internal turning/grooving; "3.5" indicates the 3.5 mm cutting width/projection; and "TH35" identifies the Horn carbide substrate grade TH35, a fine-grain PVD-TiAlN-coated uncoated tungsten carbide grade engineered for internal turning, grooving, and boring on steel, stainless steel, and difficult-to-machine alloys. The Supermini system uses precision-ground, replaceable single-tooth inserts clamped in the cylindrical body (shank diameter 10 mm nominal for the 105 series) via a side-set screw, delivering high rigidity and concentricity in small-bore applications down to approximately 5 mm bore diameter. Made in the USA, as labeled, this kit ships in the original factory sealed packaging with two assemblies included.

Product Specifications