O1 Tool Steel ST Precision Ground Flat Stock
An oilhardening, cold work general purpose
steel with easy machining properties and low hardening temperatures compared to other grades. O1 provides good wear resistance and toughness sufficient for standard tool and die applications. In situations that require greater size stability during hardening, A2 should be considered. Some common applications include: bending dies, trimmer dies, perforators, broaches, blanking dies, forming dies, gages, cutting dies, bushings, forming rolls, drawing dies, and embossing dies.
Typical Analysis:
Carbon 
.90/1.00 
Sulfur 
.030 max 
Phosphorus 
.030 max 
Tungsten 
.40/.60 
Chromium 
.40/.50 
Silicon 
.40/.50 
Vanadium 
.15/.30 
Manganese 
1.00/1.20 
Tolerances:
Size Tolerance (inches) 

Over 
Under 

Thickness  0.001 
0.001 
Width  0.000/0.005 
0 
Click here to view our Tool Steel Guide
Stock Sizes:
Available in 18" or 36" Lengths
1/64" x 1/2" O1 Tool Steel PGFS
1/64" x 3/4" O1 Tool Steel PGFS
1/64" x 1" O1 Tool Steel PGFS
1/64" x 11/4" O1 Tool Steel PGFS
1/64" x 11/2" O1 Tool Steel PGFS
1/64" x 2" O1 Tool Steel PGFS
1/64" x 21/2" O1 Tool Steel PGFS
1/64" x 3" O1 Tool Steel PGFS
1/64" x 31/2" O1 Tool Steel PGFS
1/64" x 4" O1 Tool Steel PGFS
1/32" x 1/2" O1 Tool Steel PGFS
1/32" x 3/4" O1 Tool Steel PGFS
1/32" x 1" O1 Tool Steel PGFS
1/32" x 11/4" O1 Tool Steel PGFS
1/32" x 11/2" O1 Tool Steel PGFS
1/32" x 2" O1 Tool Steel PGFS
1/32" x 21/2" O1 Tool Steel PGFS
1/32" x 3" O1 Tool Steel PGFS
1/32" x 31/2" O1 Tool Steel PGFS
1/32" x 4" O1 Tool Steel PGFS
1/32" x 5" O1 Tool Steel PGFS
1/32" x 6" O1 Tool Steel PGFS
1/32" x 8" O1 Tool Steel PGFS
3/64" x 1/4" O1 Tool Steel PGFS
3/64" x 5/16" O1 Tool Steel PGFS
3/64" x 3/8" O1 Tool Steel PGFS
3/64" x 1/2" O1 Tool Steel PGFS
3/64" x 5/8" O1 Tool Steel PGFS
3/64" x 3/4" O1 Tool Steel PGFS
3/64" x 1" O1 Tool Steel PGFS
3/64" x 11/4" O1 Tool Steel PGFS
3/64" x 11/2" O1 Tool Steel PGFS
3/64" x 13/4" O1 Tool Steel PGFS
3/64" x 2" O1 Tool Steel PGFS
3/64" x 21/2" O1 Tool Steel PGFS
3/64" x 3" O1 Tool Steel PGFS
3/64" x 31/2" O1 Tool Steel PGFS
3/64" x 4" O1 Tool Steel PGFS
3/64" x 5" O1 Tool Steel PGFS
3/64" x 6" O1 Tool Steel PGFS
3/64" x 8" O1 Tool Steel PGFS
1/16" x 1/4" O1 Tool Steel PGFS
1/16" x 5/16" O1 Tool Steel PGFS
1/16" x 3/8" O1 Tool Steel PGFS
1/16" x 1/2" O1 Tool Steel PGFS
1/16" x 5/8" O1 Tool Steel PGFS
1/16" x 3/4" O1 Tool Steel PGFS
1/16" x 7/8" O1 PGFS
1/16" x 1" O1 PGFS
1/16" x 11/4" O1 PGFS
1/16" x 11/2" O1 PGFS
1/16" x 13/4" O1 PGFS
1/16" x 2" O1 PGFS
1/16" x 21/2" O1 PGFS
1/16" x 3" O1 PGFS
1/16" x 31/2" O1 PGFS
1/16" x 4" O1 PGFS
1/16" x 41/2" O1 PGFS
1/16" x 5" O1 PGFS
1/16" x 6" O1 PGFS
1/16" x 8" O1 PGFS
1/16" x 10" O1 PGFS
5/64" x 1/4" O1 PGFS
5/64" x 5/16" O1 PGFS
5/64" x 3/8" O1 PGFS
5/64" x 1/2" O1 PGFS
5/64" x 5/8" O1 PGFS
5/64" x 3/4" O1 PGFS
5/64" x 1" O1 PGFS
5/64" x 11/4" O1 PGFS
5/64" x 11/2" O1 PGFS
5/64" x 13/4" O1 PGFS
5/64" x 2" O1 PGFS
5/64" x 21/2" O1 PGFS
5/64" x 3" O1 PGFS
5/64" x 31/2" O1 PGFS
5/64" x 4" O1 PGFS
5/64" x 5" O1 PGFS
5/64" x 6" O1 PGFS
3/32" x 1/4" O1 PGFS
3/32" x 5/16" O1 PGFS
3/32" x 3/8" O1 PGFS
3/32" x 1/2" O1 PGFS
3/32" x 5/8" O1 PGFS
3/32" x 3/4" O1 PGFS
3/32" x 7/8" O1 PGFS
3/32" x 1" O1 PGFS
3/32" x 11/4" O1 PGFS
3/32" x 11/2" O1 PGFS
3/32" x 13/4" O1 PGFS
3/32" x 2" O1 PGFS
3/32" x 21/2" O1 PGFS
3/32" x 3" O1 PGFS
3/32" x 31/2" O1 PGFS
3/32" x 4" O1 PGFS
3/32" x 41/2" O1 PGFS
3/32" x 5" O1 PGFS
3/32" x 6" O1 PGFS
3/32" x 7" O1 PGFS
3/32" x 8" O1 PGFS
3/32" x 10" O1 PGFS
7/64" x 3/8" O1 PGFS
7/64" x 1/2" O1 PGFS
7/64" x 5/8" O1 PGFS
7/64" x 3/4" O1 PGFS
7/64" x 1" O1 PGFS
7/64" x 11/4" O1 PGFS
7/64" x 11/2" O1 PGFS
7/64" x 13/4" O1 PGFS
7/64" x 2" O1 PGFS
7/64" x 21/2" O1 PGFS
7/64" x 3" O1 PGFS
7/64" x 31/2" O1 PGFS
7/64" x 4" O1 PGFS
7/64" x 41/2" O1 PGFS
7/64" x 5" O1 PGFS
7/64" x 6" O1 PGFS
7/64" x 7" O1 PGFS
7/64" x 8" O1 PGFS
1/8" x 1/8" O1 PGFS
1/8" x 1/4" O1 PGFS
1/8" x 5/16" O1 PGFS
1/8" x 3/8" O1 PGFS
1/8" x 1/2" O1 PGFS
1/8" x 5/8" O1 PGFS
1/8" x 3/4" O1 PGFS
1/8" x 7/8" O1 PGFS
1/8" x 1" O1 PGFS
1/8" x 11/4" O1 PGFS
1/8" x 11/2" O1 PGFS
1/8" x 13/4" O1 PGFS
1/8" x 2" O1 PGFS
1/8" x 21/2" O1 PGFS
1/8" x 3" O1 PGFS
1/8" x 31/2" O1 PGFS
1/8" x 4" O1 PGFS
1/8" x 41/2" O1 PGFS
1/8" x 5" O1 PGFS
1/8" x 6" O1 PGFS
1/8" x 7" O1 PGFS
1/8" x 8" O1 PGFS
1/8" x 10" O1 PGFS
1/8" x 12" O1 PGFS
1/8" x 14" O1 PGFS
9/64" x 9/64" O1 PGFS
9/64" x 1/2" O1 PGFS
9/64" x 5/8" O1 PGFS
9/64" x 3/4" O1 PGFS
9/64" x 1" O1 PGFS
9/64" x 11/4" O1 PGFS
9/64" x 11/2" O1 PGFS
9/64" x 13/4" O1 PGFS
9/64" x 2" O1 PGFS
9/64" x 21/2" O1 PGFS
9/64" x 3" O1 PGFS
9/64" x 31/2" O1 PGFS
9/64" x 4" O1 PGFS
9/64" x 5" O1 PGFS
9/64" x 6" O1 PGFS
5/32" x 5/32" O1 PGFS
5/32" x 1/4" O1 PGFS
5/32" x 5/16" O1 PGFS
5/32" x 3/8" O1 PGFS
5/32" x 1/2" O1 PGFS
5/32" x 5/8" O1 PGFS
5/32" x 3/4" O1 PGFS
5/32" x 1" O1 PGFS
5/32" x 11/4" O1 PGFS
5/32" x 11/2" O1 PGFS
5/32" x 13/4" O1 PGFS
5/32" x 2" O1 PGFS
5/32" x 21/2" O1 PGFS
5/32" x 3" O1 PGFS
5/32" x 31/2" O1 PGFS
5/32" x 4" O1 PGFS
5/32" x 41/2" O1 PGFS
5/32" x 5" O1 PGFS
5/32" x 6" O1 PGFS
5/32" x 8" O1 PGFS
3/16" x 3/16" O1 PGFS
3/16" x 1/4" O1 PGFS
3/16" x 5/16" O1 PGFS
3/16" x 3/8" O1 PGFS
3/16" x 1/2" O1 PGFS
3/16" x 5/8" O1 PGFS
3/16" x 3/4" O1 PGFS
3/16" x 7/8" O1 PGFS
3/16" x 1" O1 PGFS
3/16" x 11/4" O1 PGFS
3/16" x 11/2" O1 PGFS
3/16" x 13/4" O1 PGFS
3/16" x 2" O1 PGFS
3/16" x 21/2" O1 PGFS
3/16" x 3" O1 PGFS
3/16" x 31/2" O1 PGFS
3/16" x 4" O1 PGFS
3/16" x 41/2" O1 PGFS
3/16" x 5" O1 PGFS
3/16" x 6" O1 PGFS
3/16" x 7" O1 PGFS
3/16" x 8" O1 PGFS
3/16" x 10" O1 PGFS
3/16" x 12" O1 PGFS
3/16" x 14" O1 PGFS
7/32" x 7/32" O1 PGFS
7/32" x 5/16" O1 PGFS
7/32" x 3/8" O1 PGFS
7/32" x 1/2" O1 PGFS
7/32" x 3/4" O1 PGFS
7/32" x 1" O1 PGFS
7/32" x 11/4" O1 PGFS
7/32" x 11/2" O1 PGFS
7/32" x 2" O1 PGFS
7/32" x 21/2" O1 PGFS
7/32" x 3" O1 PGFS
7/32" x 31/2" O1 PGFS
7/32" x 4" O1 PGFS
7/32" x 6" O1 PGFS
7/32" x 8" O1 PGFS
1/4" x 1/4" O1 PGFS
1/4" x 5/16" O1 PGFS
1/4" x 3/8" O1 PGFS
1/4" x 1/2" O1 PGFS
1/4" x 5/8" O1 PGFS
1/4" x 3/4" O1 PGFS
1/4" x 7/8" O1 PGFS
1/4" x 1" O1 PGFS
1/4" x 11/4" O1 PGFS
1/4" x 11/2" O1 PGFS
1/4" x 13/4" O1 PGFS
1/4" x 2" O1 PGFS
1/4" x 21/2" O1 PGFS
1/4" x 3" O1 PGFS
1/4" x 31/2" O1 PGFS
1/4" x 4" O1 PGFS
1/4" x 41/2" O1 PGFS
1/4" x 5" O1 PGFS
1/4" x 51/2" O1 PGFS
1/4" x 6" O1 PGFS
1/4" x 7" O1 PGFS
1/4" x 8" O1 PGFS
1/4" x 10" O1 PGFS
1/4" x 12" O1 PGFS
1/4" x 14" O1 PGFS
9/32" x 9/32" O1 PGFS
9/32" x 5/16" O1 PGFS
9/32" x 3/8" O1 PGFS
9/32" x 1/2" O1 PGFS
9/32" x 5/8" O1 PGFS
9/32" x 3/4" O1 PGFS
9/32" x 7/8" O1 PGFS
9/32" x 1" O1 PGFS
9/32" x 11/4" O1 PGFS
9/32" x 11/2" O1 PGFS
9/32" x 13/4" O1 PGFS
9/32" x 2" O1 PGFS
9/32" x 21/2" O1 PGFS
9/32" x 3" O1 PGFS
9/32" x 4" O1 PGFS
9/32" x 6" O1 PGFS
5/16" x 5/16" O1 PGFS
5/16" x 3/8" O1 PGFS
5/16" x 1/2" O1 PGFS
5/16" x 5/8" O1 PGFS
5/16" x 3/4" O1 PGFS
5/16" x 7/8" O1 PGFS
5/16" x 1" O1 PGFS
5/16" x 11/4" O1 PGFS
5/16" x 11/2" O1 PGFS
5/16" x 13/4" O1 PGFS
5/16" x 2" O1 PGFS
5/16" x 21/2" O1 PGFS
5/16" x 3" O1 PGFS
5/16" x 31/2" O1 PGFS
5/16" x 4" O1 PGFS
5/16" x 41/2" O1 PGFS
5/16" x 5" O1 PGFS
5/16" x 51/2" O1 PGFS
5/16" x 6" O1 PGFS
5/16" x 7" O1 PGFS
5/16" x 8" O1 PGFS
5/16" x 10" O1 PGFS
5/16" x 12" O1 PGFS
3/8" x 3/8" O1 PGFS
3/8" x 1/2" O1 PGFS
3/8" x 5/8" O1 PGFS
3/8" x 3/4" O1 PGFS
3/8" x 7/8" O1 PGFS
3/8" x 1" O1 PGFS
3/8" x 11/4" O1 PGFS
3/8" x 11/2" O1 PGFS
3/8" x 13/4" O1 PGFS
3/8" x 2" O1 PGFS
3/8" x 21/2" O1 PGFS
3/8" x 3" O1 PGFS
3/8" x 31/2" O1 PGFS
3/8" x 4" O1 PGFS
3/8" x 41/2" O1 PGFS
3/8" x 5" O1 PGFS
3/8" x 51/2" O1 PGFS
3/8" x 6" O1 PGFS
3/8" x 7" O1 PGFS
3/8" x 8" O1 PGFS
3/8" x 10" O1 PGFS
3/8" x 12" O1 PGFS
3/8" x 14" O1 PGFS
7/16" x 7/16" O1 PGFS
7/16" x 1/2" O1 PGFS
7/16" x 5/8" O1 PGFS
7/16" x 3/4" O1 PGFS
7/16" x 1" O1 PGFS
7/16" x 11/4" O1 PGFS
7/16" x 11/2" O1 PGFS
7/16" x 13/4" O1 PGFS
7/16" x 2" O1 PGFS
7/16" x 21/2" O1 PGFS
7/16" x 3" O1 PGFS
7/16" x 31/2" O1 PGFS
7/16" x 4" O1 PGFS
7/16" x 6" O1 PGFS
1/2" x 1/2" O1 PGFS
1/2" x 5/8" O1 PGFS
1/2" x 3/4" O1 PGFS
1/2" x 7/8" O1 PGFS
1/2" x 1" O1 PGFS
1/2" x 11/4" O1 PGFS
1/2" x 11/2" O1 PGFS
1/2" x 13/4" O1 PGFS
1/2" x 2" O1 PGFS
1/2" x 21/2" O1 PGFS
1/2" x 3" O1 PGFS
1/2" x 31/2" O1 PGFS
1/2" x 4" O1 PGFS
1/2" x 41/2" O1 PGFS
1/2" x 5" O1 PGFS
1/2" x 51/2" O1 PGFS
1/2" x 6" O1 PGFS
1/2" x 7" O1 PGFS
1/2" x 8" O1 PGFS
1/2" x 10" O1 PGFS
1/2" x 12" O1 PGFS
1/2" x 14" O1 PGFS
9/16" x 9/16" O1 PGFS
9/16" x 3/4" O1 PGFS
9/16" x 1" O1 PGFS
9/16" x 11/4" O1 PGFS
9/16" x 11/2" O1 PGFS
9/16" x 2" O1 PGFS
9/16" x 21/2" O1 PGFS
9/16" x 3" O1 PGFS
9/16" x 31/2" O1 PGFS
9/16" x 4" O1 PGFS
5/8" x 5/8" O1 PGFS
5/8" x 3/4" O1 PGFS
5/8" x 7/8" O1 PGFS
5/8" x 1" O1 PGFS
5/8" x 11/4" O1 PGFS
5/8" x 11/2" O1 PGFS
5/8" x 13/4" O1 PGFS
5/8" x 2" O1 PGFS
5/8" x 21/2" O1 PGFS
5/8" x 3" O1 PGFS
5/8" x 31/2" O1 PGFS
5/8" x 4" O1 PGFS
5/8" x 41/2" O1 PGFS
5/8" x 5" O1 PGFS
5/8" x 6" O1 PGFS
5/8" x 7" O1 PGFS
5/8" x 8" O1 PGFS
5/8" x 10" O1 PGFS
5/8" x 12" O1 PGFS
3/4" x 3/4" O1 PGFS
3/4" x 7/8" O1 PGFS
3/4" x 1" O1 PGFS
3/4" x 11/4" O1 PGFS
3/4" x 11/2" O1 PGFS
3/4" x 13/4" O1 PGFS
3/4" x 2" O1 PGFS
3/4" x 21/2" O1 PGFS
3/4" x 3" O1 PGFS
3/4" x 31/2" O1 PGFS
3/4" x 4" O1 PGFS
3/4" x 41/2" O1 PGFS
3/4" x 5" O1 PGFS
3/4" x 6" O1 PGFS
3/4" x 7" O1 PGFS
3/4" x 8" O1 PGFS
3/4" x 10" O1 PGFS
3/4" x 12" O1 PGFS
7/8" x 7/8" O1 PGFS
7/8" x 1" O1 PGFS
7/8" x 11/4" O1 PGFS
7/8" x 11/2" O1 PGFS
7/8" x 2" O1 PGFS
7/8" x 21/2" O1 PGFS
7/8" x 3" O1 PGFS
7/8" x 31/2" O1 PGFS
7/8" x 4" O1 PGFS
7/8" x 6" O1 PGFS
1" x 1" O1 PGFS
1" x 11/4" O1 PGFS
1" x 11/2" O1 PGFS
1" x 13/4" O1 Precision Ground Flat Stock
1" x 2" O1 Precision Ground Flat Stock
1" x 21/2" O1 Precision Ground Flat Stock
1" x 3" O1 Precision Ground Flat Stock
1" x 31/2" O1 Precision Ground Flat Stock
1" x 4" O1 Precision Ground Flat Stock
1" x 41/2" O1 Precision Ground Flat Stock
1" x 5" O1 Precision Ground Flat Stock
1" x 6" O1 Precision Ground Flat Stock
1" x 8" O1 Precision Ground Flat Stock
1" x 10" O1 Precision Ground Flat Stock
1" x 12" O1 Precision Ground Flat Stock
11/8" x 11/8" O1 Precision Ground Flat Stock
11/8" x 11/2" O1 Precision Ground Flat Stock
11/8" x 2" O1 Precision Ground Flat Stock
11/8" x 21/2" O1 Precision Ground Flat Stock
11/8" x 3" O1 Precision Ground Flat Stock
11/8" x 4" O1 Precision Ground Flat Stock
11/8" x 5" O1 Precision Ground Flat Stock
11/8" x 6" O1 Precision Ground Flat Stock
11/4" x 11/4" O1 Precision Ground Flat Stock
11/4" x 11/2" O1 Precision Ground Flat Stock
11/4" x 13/4" O1 Precision Ground Flat Stock
11/4" x 2" O1 Precision Ground Flat Stock
11/4" x 21/2" O1 Precision Ground Flat Stock
11/4" x 3" O1 Precision Ground Flat Stock
11/4" x 31/2" O1 Precision Ground Flat Stock
11/4" x 4" O1 Precision Ground Flat Stock
11/4" x 5" O1 Precision Ground Flat Stock
11/4" x 6" O1 Precision Ground Flat Stock
11/4" x 8" O1 Precision Ground Flat Stock
11/4" x 10" O1 Precision Ground Flat Stock
11/2" x 11/2" O1 Precision Ground Flat Stock
11/2" x 13/4" O1 Precision Ground Flat Stock
11/2" x 2" O1 Precision Ground Flat Stock
11/2" x 21/2" O1 Precision Ground Flat Stock
11/2" x 3" O1 Precision Ground Flat Stock
11/2" x 31/2" O1 Precision Ground Flat Stock
11/2" x 4" O1 Precision Ground Flat Stock
11/2" x 5" O1 Precision Ground Flat Stock
11/2" x 6" O1 Precision Ground Flat Stock
11/2" x 8" O1 Precision Ground Flat Stock
11/2" x 10" O1 Precision Ground Flat Stock
11/2" x 12" O1 Precision Ground Flat Stock
2" x 2" O1 Precision Ground Flat Stock
2" x 21/2" O1 Precision Ground Flat Stock
2" x 3" O1 Precision Ground Flat Stock
2" x 4" O1 Precision Ground Flat Stock
2" x 6" O1 Precision Ground Flat Stock
21/2" x 21/2" O1 Precision Ground Flat Stock