![Micro 100 TH-407 Boring & Grooving Bar Holders; Inside Diameter (Inch): 5/16 ; Inside Diameter (Decimal Inch): 0.3125 ; Outside Diameter (Decimal Inch - 4 Decimals): 1.0000 ; Outside Diameter (Inch): 1 ; Overall Length (mm): 69.85 ; Overall Length (D Micro 100 TH-407 Boring & Grooving Bar Holders; Inside Diameter (Inch): 5/16 ; Inside Diameter (Decimal Inch): 0.3125 ; Outside Diameter (Decimal Inch - 4 Decimals): 1.0000 ; Outside Diameter (Inch): 1 ; Overall Length (mm): 69.85 ; Overall Length (D](https://cdn11.bigcommerce.com/s-rerso7mgzy/images/stencil/640x640/products/2533802/2692711/1530710-21__76222.1717218841.jpg?c=1)
Micro 100 TH-407 Boring & Grooving Bar Holders; Inside Diameter (Inch): 5/16 ; Inside Diameter (Decimal Inch): 0.3125 ; Outside Diameter (Decimal Inch - 4 Decimals): 1.0000 ; Outside Diameter (Inch): 1 ; Overall Length (mm): 69.85 ; Overall Length (D