Part NumberSize (inches)A

21-1

1 2.250

21-1.5

1 1/2 2.437

21-2

2 2.562

21-2.5

2 1/2 3.281

21-3

3 3.500

21-4

4 3.813

Features:

Note: Reducing sizes also available. Available with wrench flats or hex.