Accupro ACC-TRG8 Boring Bar 0.5 in Min Bore Neutral Micrograin

Product Description

The ACCUPRO ACC-TRG8 is a neutral-cutting boring bar designed for precision internal diameter machining on lathes and boring mills. Built with a micrograin carbide grade, it delivers consistent edge integrity and wear resistance across a range of ferrous and non-ferrous materials. The bar accepts a 0.5-inch minimum bore diameter and reaches a maximum bore depth of 2.5 inches, making it well suited for shallow-to-medium depth internal turning operations. A bright finish coating reduces built-up edge and friction during the cut. Machinists and tool-and-die professionals install this bar in standard 0.5-inch shank tool holders, and the 5-inch overall length provides adequate clearance for most standard turret setups.

This boring bar is intended for use in production and job-shop environments where repeatable bore dimensions are critical. It is appropriate for finishing and semi-finishing passes on through-bores and blind bores within its stated depth capacity. The neutral cutting direction makes it adaptable to both right-hand and left-hand machine configurations without reorienting the tool holder. Typical applications include bore sizing on housings, bushings, flanges, and similar cylindrical workpieces held in a chuck or fixture.

Key Features

• Micrograin carbide grade provides high edge hardness and resistance to chipping on interrupted or continuous cuts
• Neutral cutting direction supports use in multiple machine orientations
• 0.5-inch minimum bore diameter allows work on small-diameter internal features
• 2.5-inch maximum bore depth covers a broad range of shallow and medium-depth bore applications
• Bright finish coating reduces friction and minimizes built-up edge during cutting
• 0.5-inch shank diameter fits widely available standard tool holders and turret blocks

Compatibility

Designed as an OEM-style replacement and standard fit for 0.5-inch shank boring bar tool holders used in manual and CNC lathes or boring mills.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before mounting or removing the boring bar. Secure the shank fully within the tool holder to the manufacturer-specified engagement depth to prevent deflection or pullout during cutting. Verify that the bore depth and diameter are within the rated capacity of this bar before beginning a cut.