http://www.mcmaster.com/#chrome-steel-balls/=9azbb1
Then click the link E52100 on the bottom
Material Bearing-Quality Aircraft-Grade E52100 Alloy Steel
Alloy E52100
Finish/Coating Reflective
Shape Balls
Diameter 1"
1" 9528K33 13.05 per Pack of 10
These 83 products match your selections
Diameter
3/64" 9528K122 $7.69 per Pack of 100
1/16" 9528K51 5.68 per Pack of 100
5/64" 9528K123 8.37 per Pack of 100
1/12" 9528K52 5.70 per Pack of 100
3/32" 9528K34 4.24 per Pack of 100
7/64" 9528K124 9.91 per Pack of 100
1/8" 9528K11 2.82 per Pack of 100
9/64" 9528K93 4.46 per Pack of 100
5/32" 9528K12 3.09 per Pack of 100
11/64" 9528K94 5.37 per Pack of 100
3/16" 9528K13 3.12 per Pack of 100
7/32" 9528K14 3.64 per Pack of 100
1/4" 9528K15 4.24 per Pack of 100
17/64" 9528K95 7.95 per Pack of 100
9/32" 9528K16 5.43 per Pack of 100
5/16" 9528K17 5.57 per Pack of 100
11/32" 9528K18 8.30 per Pack of 100
3/8" 9528K19 9.58 per Pack of 100
13/32" 9528K21 11.40 per Pack of 100
7/16" 9528K22 12.18 per Pack of 100
15/32" 9528K23 14.44 per Pack of 100
1/2" 9528K24 14.01 per Pack of 100
17/32" 9528K35 11.11 per Pack of 50
9/16" 9528K25 11.79 per Pack of 50
19/32" 9528K36 13.56 per Pack of 50
5/8" 9528K26 14.36 per Pack of 50
21/32" 9528K27 14.55 per Pack of 50
11/16" 9528K28 9.28 per Pack of 25
23/32" 9528K37 10.48 per Pack of 25
3/4" 9528K29 11.82 per Pack of 25
25/32" 9528K31 14.25 per Pack of 25
13/16" 9528K38 12.32 per Pack of 20
7/8" 9528K32 14.44 per Pack of 20
15/16" 9528K39 14.70 per Pack of 15
1" 9528K33 13.05 per Pack of 10
1-1/16" 9528K41 10.80 per Pack of 5
1-1/8" 9528K42 12.14 per Pack of 5
1-3/16" 9528K43 14.61 per Pack of 5
1-1/4" 9528K44 14.59 per Pack of 5
1-5/16" 9528K61 14.54 per Pack of 4
1-3/8" 9528K62 14.61 per Pack of 3
1-7/16" 9528K63 13.64 per Pack of 2
1-1/2" 9528K64 5.34 Each
1-9/16" 9528K125 10.54 Each
1-5/8" 9528K65 10.80 Each
1-11/16" 9528K126 12.69 Each
1-3/4" 9528K66 13.47 Each
1-7/8" 9528K67 18.53 Each
2" 9528K71 19.38 Each
2-1/8" 9528K87 39.95 Each
2-1/4" 9528K73 56.70 Each
2-3/8" 9528K74 69.81 Each
2-1/2" 9528K72 89.78 Each
2-5/8" 9528K88 97.39 Each
2-3/4" 9528K92 106.61 Each
3" 9528K75 112.47 Each
3-1/4" 9528K127 118.91 Each
3-1/2" 9528K128 160.52 Each
4" 9528K131 223.15 Each
4-1/2" 9528K132 306.05 Each