Tri-Cut design for accurate, clean holes 19 - 127mm Synchronised blade adjustment for faster sizing Integrated measuring guide for a variety of hole cutting applications Suitable for downlights, ventilation and electrical outlet installation HSS split point pilot bit for reduced bit walk Carbon Steel teeth provide exceptional cutting performance in plasterboard, softwood and OSB Shroud to capture dust and debris, keeping you and your work site cleaner 6.35mm hex shank for secure fitment No additional arbor or attachments required 2 sets of teeth comprising of three blades, Set 1 for hole sizes 19 - 100mm and Set 2 for hole sizes 45 - 127mm