XB Subsoiler blade length??

[KRH2015]

Does anyone know ( or can measure ) the actual blade length of an XB style subsoiler ? I am talking about the blade and not the shank length. I have measured the yellow type at Tractor Supply and they are 12" long. TSC near me never seems to have the XB style in stock so I haven't been able to get a measurement. I posted this question in the attachment's forum and so far no one has responded. I appreciate any response. Thanks, K.H.

 

[Danner]

Here you go:

 

[KRH2015]

Thank's alot Danner ! Thats exactly what I wanted to know. The middlebuster pic was helpful also. I'm half done building a middlebuster-subsoiler combo and need to decide on blade sizes. You also most likely saved me from another wasted trip to Tractor Supply! Thank's K.H.