The Relton ISHS Series brazed carbide hole saw is purpose-built for two materials that eat ordinary hole saws: hard plastic and stucco. Carbide teeth brazed to a high-speed steel body cut PVC, ABS, polycarbonate, acrylic and stucco walls cleanly, without chipping, cracking or melted edges. Complete assemblies are stocked in diameters from 1 in. through 4 in. with a 2 in. cutting depth.

Stucco is the headline use openings in exterior walls for outlets, light fixtures, pipes and vents, where the carbide teeth handle abrasive aggregate that dulls standard saws. Once the first saw is on the truck, replacement ISHS heads are stocked head-only, and sister series cover wood and fiberglass and interrupted-cut metal cutting; the full lineup lives in our electric hammer tools range.

• Diameters from 1 in. through 4 in. stocked; 2 in. cutting depth
• Brazed carbide teeth cut abrasive stucco cleanly for outlet, pipe and vent openings
• Smooth, low-burr holes in PVC, ABS, polycarbonate, acrylic and fiberglass-reinforced plastic
• High-speed steel body resists cutting heat and keeps the saw running true
• Runs in corded or cordless drills, drill presses and magnetic drills
• Complete assembly ready to run; replacement heads sold separately
• Stocked by Crowder Supply in Denver in the full 1 to 4 in. run