SS Bon Shape & Cutting Swirl Cycle Head Bur Drill Ø3.8mm, Dental Im plant por | Jul 20, 2026The Swirl Cycle Bur is designed for effective and predictable cutting and shaping of the bone structure, and for removing unwanted granulation tissue. WholeDent Swirl Cycle Bur Ø3.8. X1 Swirl Cycle Cone Bur.