![Micro 100 QTHM-420 Boring & Grooving Bar Holders; Inside Diameter (Inch): 1/4 ; Inside Diameter (Decimal Inch): 0.2500 ; Outside Diameter (Decimal Inch - 4 Decimals): 20.0000 ; Overall Length (Decimal Inch): 2.8000 ; Head Diameter (Decimal Inch): 0.8 Micro 100 QTHM-420 Boring & Grooving Bar Holders; Inside Diameter (Inch): 1/4 ; Inside Diameter (Decimal Inch): 0.2500 ; Outside Diameter (Decimal Inch - 4 Decimals): 20.0000 ; Overall Length (Decimal Inch): 2.8000 ; Head Diameter (Decimal Inch): 0.8](https://cdn11.bigcommerce.com/s-rerso7mgzy/images/stencil/640x640/products/914698/1067466/1530792-21__30928.1716997326.jpg?c=1)
Micro 100 QTHM-420 Boring & Grooving Bar Holders; Inside Diameter (Inch): 1/4 ; Inside Diameter (Decimal Inch): 0.2500 ; Outside Diameter (Decimal Inch - 4 Decimals): 20.0000 ; Overall Length (Decimal Inch): 2.8000 ; Head Diameter (Decimal Inch): 0.8