Well Drilling Head Mining 4" 3-7/8" Hole Tapered Shaft 56443 Bit Boring Auger

Description

Well Drilling Head Mining 4" 3-7/8" Hole Tapered Shaft 56443 Bit Boring Auger.
This bit appears to be new or very lightly used, most likely in sand which is most of our area. It has the following numbers on it:
56443
L2
3-7/8"
5J
50
The teeth also have numbers best read as:
969
947
One unknown.
I am no mining expert so ask whatever questions you may have or give some insight if you have some. Cool piece! Looks pretty gnarly to chew up the ground.