Scientific Cutting Tools’ 1/4" Right-Hand Triangle Insert Indexable Boring Bars are built for precision in compact internal turning applications. Featuring a heat-treated steel head and a rigid micro-grain carbide shank, these tools are designed to support triangle-style inserts for reliable cutting in tight spaces. The solid construction ensures stability and accuracy in operations where coolant-through functionality is not required. These bars are ideal for shops looking for a durable, high-performance solution for small-diameter boring.