Tungaloy SPCGD-01980-0136-59825-01 2249583 1.98mm Solid Carbide Micro Boring Bar

This is a new Tungaloy solid carbide micro boring bar, item number 2249583, with the full Tungaloy internal reference SPCGD-01980-0136-59825-01, manufactured in France by Tungaloy Corporation. Decoding the part number: "SPCGD" denotes the tool series (small-part/micro boring type with a cylindrical shank and cup-style head), "01980" encodes a nominal boring diameter of 1.980 mm, and "0136" encodes a shank diameter of 1.36 mm; the long, slender carbide shank with an enlarged cylindrical head visible in the photos is characteristic of Tungaloy's TungBore or equivalent micro boring line designed for high-precision internal diameter machining of very small bores. The tool features a DLC/dark PVD-like finish on the shank and a polished carbide head with an integrated cutting geometry for profiling and finish boring operations in watchmaking, medical device manufacturing, and precision micro-part production. Compatible with Tungaloy's corresponding micro boring toolholding systems that accept the encoded shank diameter; the single-piece solid carbide construction eliminates deflection at extreme length-to-diameter ratios inherent to this bore size.

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