HS Steel vs. Hardened Steel == Burned Drill Bit
HS Steel vs. Hardened Steel == Burned Drill Bit. This 3/32" diameter drill bit did not survive contact with a harder metal, burning and mushrooming the cutting end instead.
(2-0013-Burned.Drill.Bit_ND31639-vert+55+36)
55mm f/3.5 Micro Nikkor + 36mm ext. tube (diffused sunlight)
25" @ f/22.0
1,162
views
3
faves
1
comment
Uploaded on October 3, 2011
Taken on October 3, 2011
HS Steel vs. Hardened Steel == Burned Drill Bit
HS Steel vs. Hardened Steel == Burned Drill Bit. This 3/32" diameter drill bit did not survive contact with a harder metal, burning and mushrooming the cutting end instead.
(2-0013-Burned.Drill.Bit_ND31639-vert+55+36)
55mm f/3.5 Micro Nikkor + 36mm ext. tube (diffused sunlight)
25" @ f/22.0
1,162
views
3
faves
1
comment
Uploaded on October 3, 2011
Taken on October 3, 2011