G.L.HUYETT™ Woodruff Key, Half Moon Imperial, 5/16 in Height, 0.74 in Length, SAE Number: 806, Carbon Steel/Alloy Steel, Plain, 40 to 50 HRC Hardness, 1/4 in Key

ITEM FEATURES:

• They are designed to be installed deep into a shaft and firmly embedded
• As a result, they are less likely to slip out of the key way
• Both round and flat bottom designs are standard and function equally