Type

Style

Way of Drive

Square (in)

Hexagon (in)

HDS

Heavy

Square Drive

2 2/1-6

3-6-

27-HDP

Pin Drive

2 2/1-6

3-6-

20-HDP

Pin Drive

2 2/1-6

3-6-

4KRVS

Medium

Square Drive

2 1/2-5 1/4

3-4 1/4

20-MDP

Pin Drive

2 1/2-4 1/4

3-4 1/4

17-MDP

Pin Drive

2 1/2-4 1/4

3-4 1/4

4KRMB

Light-Weight

Square Drive

2 1/2-4 1/4

3-4 1/4