<HTML>HI,  I bought some key bushing wedge clamps ( part 151 in Schaff catalog ),back years ago.Remember when you first got in the buisness,and you couldn't wait to get the tool catalog out,and SPEND.Well,it never worked well for me,for what it was intended for.But I've found it's great for bushing a pedal lyre.It is the perfect size, to hold the cloth in place, in the opening where the pedal goes,which is normally bushed with something about the thickness of nameboard felt.You squeeze it closed,slide it in outside the felt,and let go. Best, Hazen Bannister</HTML>