1/8 drill bit cut to size will work. I had one fall out a month or so back and I contacted TTI customer service and they were horrible. They told me if I tightened the set screw it voided my warranty, so DO NOT tighten the set screw or at least don't let them know you tightenend it. The girl was so rude that I'll never buy any tti products again. I told her I'd only used these base pads for 3 matches and she basically said tough ---- and I could buy a extra base pad repair kit. I'll go with dawson next time even though I don't like them. Taran won't get another penny from me !