This 12mm hole saw drill bit is 50% off at Amazon. At $3, it also beats its Amazon all-time low of $5 and sits below its 90-day average of $6. Shipping is free for Prime members. Buy Now at Amazon
Features
Cutting diameter of 0.5″ (12mm) Cuts stainless steel, mild steel, iron, aluminum, copper, brass, & plastic Straight shank fits handheld & table-mounted drills Includes a detachable twist drill bit High-temperature brazed carbide blade Single piece, weighs 1.76 oz.
