[m5burndt]

One more question, we are looking for about an 18 tooth HTD-5 pulley with 1/2" bore. Econobelt has them but the biggest is .2500" keyed bore. Would you happen to know if these pulleys are solid aluminum or if they are hollow on the inside? (We hope to bore-out to 1/2" ID, obviously this is not possible if the pulley is a hollow finished-bore)

Thanks again,

James