Up for auction is a vintage Martin Aircraft Tool Co. Micro Countersink plunge bit.  It is model M303.

Condition:  Good condition.

I find a bunch of interesting stuff so please check out my other Items.

I try and get item shipped within 48 hrs after payment.  I stand behind everything I sell if you have a problem with something please contact me before leaving feedback. You never know what I will find so please check out my other items.