Hide Show Product DetailsSize (In)3/8 & 1/2 inUsed WithCompression ManablocsDescriptionThe Manabloc wrench allows you to easily tighten 3/8'' and 1/2'' lock-in nuts for a Manabloc with precision. For use with compression Manablocs only.50631B008J0WPHY069151450631930691514506310691514506319Viega Customer Reviews Hide Show Write a Review