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A professional hole saw engineered for fast, clean cutting through metal, wood and plastics using cobalt HSS teeth and a positive rake. Tradespeople and keen DIYers will appreciate neater holes and less binding with Starrett HSS Bi-Metal Fast Cut Hole Saw in common diameters. Is it the right choice for sheet-metal and workshop work?
⚡ At a Glance
- • Cutting Quality: Extra cobalt HSS teeth and 5.5 TPI positive rake produce fast, smooth cuts with a clean edge
- • Best for: Tradespeople and DIYers working on thin stainless, mild steel, wood and plastics
- • Not ideal for: Jobs requiring an arbor and pilot drill included, as neither is supplied
Bi-metal fast cut hole saw rated for up to 3mm stainless and mild steel. Supplied size variant is 51mm and no arbor or pilot drill is included.
Faster cutting - with extra cobalt HSS teeth and 5.5 TPI positive rake
Extra cobalt high-speed steel tooth material combined with a 5.5 TPI positive rake tooth design increases cutting aggressiveness and reduces chatter while sharp tooth geometry slices through material.
Quicker penetration reduces job time, particularly when working with thin metal and timber, and keeps progress steady on site.
Clean, non-binding holes - with HSS teeth and a clean edge design
HSS teeth and a non-binding clean edge profile minimise material welding to the cutting face, while 30% extra gullet volume helps evacuate chips efficiently.
Cleaner hole edges mean less finishing work and fewer instances of the saw jamming during deeper cuts.
Versatile material capability - thanks to rated cut depths and broad size range
Rated to cut up to 3mm in stainless and mild steel and to handle tube walls up to 3mm, with recommended cutting depth of up to 13mm in softer materials and sizes available from 14mm to 210mm.
Suitable for plumbing, electrical, woodworking and light metalwork, covering most interior and workshop tasks with one range.
✨ The 4 Key Reasons for Starrett HSS Bi-Metal Fast Cut Hole Saw
- Extra cobalt HSS teeth - Faster cuts through hard metals with reduced tooth wear
- 5.5 TPI positive rake - Aggressive cutting action for quicker penetration in thin sheet
- 30% extra gullet volume - Improved chip clearance for fewer jams and cleaner edges
- Wide diameter range - Covers most common hole sizes from small to large
📋 Technical Details at a Glance
- Cutting Diameter: 51mm
- Tooth Material: Extra cobalt high-speed steel (HSS)
- TPI: 5.5 TPI positive rake
- Suitable Materials: Stainless steel, mild steel, wood, plastics, plaster
- Maximum Steel Thickness: Up to 3mm for stainless and mild steel
❓ Frequently Asked Questions
Q: Can the saw cut stainless steel?
A: Yes, it is specifically suited to cutting stainless steel and mild steel sheets up to 3mm thickness, and can cut tubes with a wall thickness up to 3mm.
Q: Does the package include an arbor or pilot drill?
A: No, the hole saw does not include an arbor or pilot drill and these must be supplied separately.
Q: What depth can it cut in wood or plastic?
A: Recommended cutting depth in softer materials is up to 13mm, while the hole saw body depth is 41mm.
🏆 Our Verdict
Tradespeople and competent DIYers who need clean, fast holes in metal, wood and plastics will find this hole saw well suited to routine workshop and installation tasks. The combination of cobalt HSS teeth, positive rake geometry and extra gullet volume delivers quicker cuts and better chip clearance. While slightly more specialised than basic tipped saws, the durability and cleaner results make it a practical long-term investment.
