https://www.acehardware.com/departments/tools/power-tool-accessories/hole-saws/2688604
LENOX Speed Slot 3-1/4 in. Bi-Metal 1.5 in. L Hole Saw Mfr# 3005252L - Ace Hardware
The Lenox Speed Slot Hole with T3 Technology delivers up to 50% longer life and is up to 2x more durable than prior generations. The advanced tooth design and...