$50.99 Heavy Duty 4 Hole Saw with Arbor, Abuff 38mm Depth Bi-Metal HSS 4 Inch Hole Saw | eBay
LENOX 1-1/4-in Carbide-Grit Arbored Hole Saw in the Hole Saws & Kits department at Lowes.com
LENOX 4-1/4-in Bi-Metal Non-Arbored Hole Saw in the Hole Saws & Kits department at Lowes.com
