CK Tools T3225 2 Quick change adapter over 32 mm, 3pcs

Quick-change-adapter-over-32-mm-3pcs-CK-Tools-T3225-2-This-CK-Tools-Quick-Change-Adaptor-has-a-rapid-release-system-which-enables-fast-and-tool-free-holesaw-changeover-CK-Tools-T3225-2-Quick-change-adapter-over-32-mm-3pcs

Price: 3.29 from Rapid Online Rapid Electronics Ltd.