4mm Minimum Bore Carbide Boring Bar (Metric) - Right Hand Sharp Coated 4.00 mm Min Bore DIA x x 15.00 mm Max Bore Depth 2.160 mm Tooth Width 0.99 mm Projection x x 4.000 mm Shank DIA x 50.0 mm Overall Length - Carbide Boring Standard Right Hand, AlTiN Coated Micro-100 Solid Super Carbide Boring Bars are Manufactured to bore in most Machining applications. These are offered in standard corner Radius and Sharp Corners. With a good selection of Minimum Bores Micro-100 also offers a good selection of bore depths. We offer these Uncoated, TiN and ALTiN Coated. All Micro-100 Carbide Tools has superior rupture strength and is highly shock resistant as it will not chip or break under normal machining conditions. Micro-100 Part # BBM-040415X