ALL-CARB 2 Inch Boring Head R8 Shank 9Pcs Boring Bars 1/2 Inch Carbide Boring Ba

2 Boring Head With R8 Shank.Head size: 2. Boring bar Hole: 1/2. Shank Type R8. Cross Hole Dia: 1/2. Maximum Offset: 5/8. Thread: 1.5-18. Graduations: 0.001/0-50. Center Distance bt 2 bottom hole: 0.60.

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