ITEM: 3 Max Bore Depth, 1/2 Shank Diam, Boring Bar APT. MANUFACTURER: APT. BRAND: APT. MANUFACTURER PART: BA4. 3 Max Bore Depth, 1/2 Shank Diam, Boring Bar Steel (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Boring Bars & Grooving Tools. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: APTBoring Bars & Grooving ToolsBoring BarsN/AN/A.