Great Neck Multiple-blade Hole Saw - Midwest Technology Products
Amazon.com: wolfcraft "Professional" Multi-Blade Hole Saw, Ø 60-74 mm I 2154000 I Saw with 3 Quick-Change Blades, Ø 60, 68, 74 mm, Cutting Depth 33 mm : Tools & Home Improvement
Milwaukee 4 in. Hole Dozer Bi-Metal Hole Saw 49-56-9645 - The Home Depot