| Customized: | Non-Customized |
|---|---|
| Length: | Taper-length |
| Type: | Center Drill Bit |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
M42 Bi-Metal Hole Saw - Multi-Material Hole Cutter (Wood, Gypsum Board, PVC, Plastic, Sheet Metal, Downlight)
The M42 BiMetal Hole Saw is engineered for high-performance hole cutting across a wide range of materials, from softwood and gypsum board to PVC, plastics, steel, and thin iron plate. Its cobalt-alloyed teeth deliver exceptional wear resistance and long tool life, while the progressive variable-pitch tooth geometry ensures fast, clean cuts with minimal vibration.
M42 High-Speed Steel Teeth:
Combines HSS steel and cobaltenriched M42 for outstanding hardness and durability, allowing prolonged use in abrasive materials.
Progressive Variable-Pitch Tooth Design:
Alternating tooth spacing reduces chatter and optimizes chip clearance, delivering smooth, rapid cutting in wood, drywall, plastic, and light metals.
Universal Arbor & Shank:
Equipped with a triangular or Weldon-style arbor for secure, slip-free mounting in standard drill chucks and quick-change holders.
Replaceable Pilot Bit & Ejector Slots:
Includes a center drill pilot bit for precise hole positioning; side slots in the saw body eject cut cores quickly and prevent binding.
Wide Size Range:
Available in 16mm- 100mm diameters(common sizes include 16, 18, 20, 22, 25, 28, 30, 32, 35, 38, 40, 42, 45, 50, 53, 55, 60 mm, etc.), covering standard downlight and fixture hole requirements.
| Feature | Details |
|---|---|
| Tooth Material | M42 cobalt-alloyed high-speed steel |
| Body Material | Spring steel backing |
| Tooth Count | Variable pitch, typically 14-24 teeth (sizedependent) |
| Diameter Range | 16 mm to 100 mm |
| Arbor Shank | 6 mm straight, 10 mm Weldon, or triangular version |
| Cutting Depth | ~25 mm |
| Pilot Drill | 2 mm-4 mm high-speed steel pilot bit |
| Max RPM | 2,500-3,000 (size-dependent) |
Wood & Carpentry: Precise door lock and hinge mortises, dowel holes, and decorative recesses.
Gypsum & Drywall: Clean cut-outs for downlights, speakers, and ventilation grilles.
Plastic & PVC: Apertures in PVC panels, conduit boxes, and plastic enclosures.
Light Metal & Iron Plate: Holes for electrical fittings in thin steel, iron, and aluminum sheets.
Electrical & Lighting Installations: Downlight and spotlight mounting cut-outs in ceilings and panels.
Drill Speed: Start at low speed (500-800 RPM) for larger diameters, increasing for smaller saws.
Feed Pressure: Apply steady, moderate pressure-avoid plunging too fast to prevent binding.
Cooling & Clearing: Periodically retract the saw to clear chips; use light lubrication or compressed air on metal.
Pilot Alignment: Always align the pilot bit before engaging the saw teeth for accurate hole placement.
Clean After Use: Remove debris and resin with a wire brush and solvent.
Sharpening: When teeth become dull, a professional sharpening service can restore cutting edges.
Storage: Keep saws dry and protected to prevent corrosion-store in a dedicated case or rack.
Harness the durability of M42 HSS and the versatility of bi-metal construction for fast, reliable hole cutting across wood, drywall, plastics, and light metals. Whether installing downlights or fabricating woodwork, this hole saw delivers professional results.
){kind=link}