Micro 100 QBT-2001250 Quick Change Boring Tool with Top Rake Chip Breaker, Solid Carbide Tool, 0.200"(5.08 mm) Minimum Bore Diameter, 1.250" (31.8 mm) Maximum Bore Depth, 0.030" (0.76 mm) Projection, 0.006" (0.10 mm) Tool Radius, 0.2500" (6.4 mm) Shank Di