Guhring GT106.4745.015 .23.50.R.U1 Solid Carbide Internal Grooving Bar

This is a new Gühring GT106.4745.015 solid carbide internal grooving bar from the Gühring Grooving Systems line, bearing item number 303559355 and secondary reference 20368345, made in Germany. The full designation GT106.4745.015.23.50.R.U1 decodes as follows: GT106 = internal grooving bar series; 4745 = shank diameter 4.745 mm (approx. 3/16 in); 015 = groove width 0.015 in (≈0.38 mm); .23 = minimum bore diameter 0.23 in; 50 = overall length 50 mm; R = right-hand cut; U1 = uncoated (bright) carbide grade. The tool features a monolithic solid carbide construction with an integral grooving tip geometry designed for cutting narrow internal grooves and snap-ring grooves in small-bore components on CNC lathes and Swiss-type screw machines. The dark oxide finish visible on the shank contrasts with the polished carbide cutting tip, which exhibits a relief-ground, single-point profile consistent with Gühring's SES-R-ZL-ZA geometry for low-vibration internal grooving in bores as small as 0.23 in diameter.

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