Dewalt dt8977b xlr sds drill bit set 10 piece dewalt dt8977b qz p this 10 piece drill bit set from dewalt comprises 10 bits in a plastic storage case p p the set contains br 1x 5mm x 110mm br 2x 6mm x 110mm br 2x 6mm x 160mm br 1x 6 5mm x 160mm br 2x 8mm x 160mm br 1x 10mm x 160mm br 1x 12mm x 160mm br p dewalt dt8977b qz xlr sds drill bit set 10 piece