HERCULES™ Professional 1-1/8 in. Hex Dust Extraction Attachment offers a universal fit for any 1-1/4 in. to 1-7/8 in. vacuum port sizes. The floating rubber shroud fits snugly to the bit, allowing the shroud to flex up or down, keeping dust and debris sealed inside. This attachment is ideal when demolishing granite, rock, mortar, brick, block, and concrete.