Did I do good on this reamer buy?

[1930artdeco]

Since I have a Mode A and need reamers occasionally I found these. No chips or nicks in the cutting teeth. And the price was right. Did I do good? And I am I correct in assuming that to get the correct size I use my caliper since there are no measurement marks?

Thanks,

Mike

 

[Provincial]

If they leave a smooth finish and are sizes you need, you did well.

Those are adjustable through a small range. You will need to drill the hole slightly undersize and gradually increase the bore size by adjusting the reamer on successive passes. You should be taking about .001 to .002 out of the bore on each pass.

Once adjusted, they will repeat the bore size very closely, except they may vary in bore size if used on different materials due to differences in hardness and other factors.

 

[larry_g]

To get the correct size you ream the hole and then check the fit of the shaft. If to small then adjust a wee bit and ream again. You can also use calipers, snap gauges, bore gauges, inside mikes, or a few other measuring tools to get the size of the hole. But you measure the hole, not the reamer. The variables in how you handle and use the reamer will affect the hole size and shape. Proper handle and a small cut with lube is going to give a different hole than a big cut with the reamer cranked in with a Crescent wrench.

lg
no neat sig line