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Heavy-duty hole saw for trades and DIYers, built to cut deep, precise holes in metal and softer materials. Reliable performance and a long-lasting cutting edge make jobs such as pipe penetrations and panel openings less fiddly, and the extra-cobalt teeth aim to hold an edge for longer. Is the 51mm cutting depth and rugged construction right for your workshop needs, given the need for a separate arbor and pilot drill?
⚡ At a Glance
- • Cutting Quality: Sharp cobalt HSS teeth tackle inox, non-ferrous metals and cast iron with smooth, low-vibration cuts
- • Best for: Tradespeople, plumbers and DIYers needing reliable deep holes in metal, plastic and soft wood
- • Not ideal for: Hardwood, very hard metals and stone, where performance is not recommended
Bimetal construction combines high-speed steel with cobalt-enhanced teeth for heat resistance and wear life. Increased 51mm cutting depth suits metal over 3mm and wood up to 51mm for single-pass holes.
Deep penetration - with 51mm cutting depth
A 51mm cutting depth allows through-cuts in thicker panels and tubular walls, and is specified for metal sections greater than 3mm and wood up to 51mm. Full-depth cuts require an arbor with an extended-length pilot drill to reach the entire saw depth.
Make single-pass holes through pipe walls and thicker panels, reducing the need for multiple passes and rework on site.
Longer edge life - with bimetal HSS and extra cobalt teeth
Bimetal manufacture bonds a high-speed steel body to high-cobalt alloy teeth, improving heat resistance and wear characteristics during prolonged cutting. The extra cobalt content helps maintain hardness at elevated temperatures.
Maintain sharper performance through repeated cuts, lowering downtime for blade changes and keeping job progress steady.
Multi-material versatility - with a wide compatibility range
Sharp tooth geometry suits inox, non-ferrous metals, cast iron, veneered wood, plastic, acrylic, fibreglass, formica and plaster, and the product range covers diameters from 19mm to 210mm. Use is not recommended for hardwood, hard metals or stone.
Tackle a variety of site tasks with one saw type, from panel cut-outs to service penetrations, while selecting the correct diameter for the job.
✨ The 4 Key Reasons for Starrett Deep Cut Hole Saw
- Extra Cobalt HSS Teeth - Retain sharpness through repeated deep cuts in metal
- 51mm Cutting Depth - Cut through thicker panels and pipe walls without extra passes
- Wide Size Range - Choose from 19mm to 210mm for varied hole diameters
- Multi-Material Use - Suitable for metal, plastic and fibreglass work in most jobs
📋 Technical Details at a Glance
- Category: Hole saw
- Brand: Starrett
- Diameter: 30mm
- Cutting depth: 51mm (2")
- Material: Bi-metal high-speed steel
❓ Frequently Asked Questions
Q: Can the saw cut through metal and cast iron?
A: Yes, the hole saw is specified for cutting metal thicker than 3mm and is suitable for cast iron and non-ferrous metals.
Q: Does the kit include an arbor and pilot drill?
A: No, the hole saw does not include the arbor or pilot drill, and arbors with an extended-length pilot drill are required for full-depth cuts.
Q: Is it suitable for hardwood or stone?
A: No, use on hardwood, very hard metals and stone is not recommended according to the product information.
🏆 Our Verdict
The Starrett Deep Cut Hole Saw suits tradespeople and capable DIYers who need reliable, deep holes in metal, plastic and softer woods. Bimetal HSS construction with extra cobalt teeth and a 51mm cutting depth make it well suited to pipe work and thicker panel cut-outs. While an arbor and pilot drill are required separately, the durable build suggests good long-term value for demanding site work.
