FHS Series brazed carbide hole saw heads from Relton are the replacement and size-expansion format of the wood and fiberglass line: the same brazed carbide teeth and aggressive tooth geometry, sold head-only for crews that already own the arbor. Diameters run 7/8 in. through 4 in. with a 2 in. cutting depth, cutting clean in hardwood, plywood, MDF, fiberglass and composite panel.
Head-only buying makes sense once the first saw is on the truck add diameters as lockset, speaker, drain and fitting jobs demand, without paying for a shank each time. The heads are compatible with universal hole saw arbors and run in 3/8 or 1/2 in. chucks. Starting fresh instead? The complete FHS saw includes the shank, and the ISHS heads cover hard plastic and stucco; browse the complete electric hammer tool selection for the rest.
- Diameters from 7/8 in. through 4 in.; 2 in. cutting depth
- Head only compatible with universal hole saw arbors; fits 3/8 and 1/2 in. drill chucks
- Brazed carbide teeth for high wear resistance and fast cutting in wood and fiberglass
- Minimal chipping in laminates and veneers; reduces fraying and delamination in composites
- Heat-resistant design with side openings for efficient chip removal
- Head-only diameters stocked by Crowder Supply in Denver for arbor owners

