Looking for a reliable bi-metal hole saw kit to tackle metal, wood, PVC, and more? This guide highlights five well-rounded options suitable for DIYers and professional installers alike. Each kit uses bi-metal blades designed for durable cutting and fast progress, with mandrels and drill bits included. The top picks balance cutting speed, blade life, and value, helping you choose the right set for your projects.
| Product | Sizes Included | Best For | Notes |
|---|---|---|---|
| HYCHIKA Bi-Metal Hole Saw Kit | 19–68 mm | General metal, PVC, and plastic cutting | Strong case; reliable wear resistance |
| LifeIdeas Bi-Metal Hole Saw Kit | 3/4″–2-1/2″ | Metal, PVC, wood systems | 12 blades; fast cutting |
| KATA Bi-Metal Hole Saw Kit (18 pcs) | 19–64 mm | Thin metal and hardwood | Storage case; durable blades |
| EZARC Hole Saw Kit (16 pcs) | 19–64 mm | Soft to medium metals, wood, PVC | 8% cobalt; high efficiency |
| dashap Bi-Metal Hole Saw Kit (13 pcs) | 19–76 mm | Thin metal and wood | Carbide-like performance; comprehensive set |
HYCHIKA Bi-Metal Hole Saw Kit
The HYCHIKA kit uses bi-metal blades with a cutting edge hardened to 69–81 HRC and a thickness of 2 mm for wear resistance and long life. It includes 11 hole saw sizes from 19 mm to 68 mm, plus two mandrels, three drill bits, and a hex key. This set is best for DIYers who frequently cut through metal and PVC board, as well as light wood and plastic tasks. A notable advantage is an optimized tooth layout and a side chip-relief groove for faster debris removal and cleaner cuts.
- Best for: Metal fabrication and PVC/soft plastics where durability matters.
- Why selected: Strong bi-metal construction with good width range and a practical accessory bundle.
- Caution: Cutting deep into metal can heat blades; allow cooling intervals during heavy use.
LifeIdeas Bi-Metal Hole Saw Kit (22 pcs)
The LifeIdeas set provides 12 hole saw blades covering sizes from 3/4″ to 2-1/2″ with two mandrels, drill bits, an adapter, and a spring for easier exchanges. Built with high-strength hard alloy steel bi-metal construction, these blades promise wear resistance and corrosion resistance for longer service life. Ideal for metal, PVC board, and wood applications, this kit emphasizes fast, cleaner cuts through multiple materials.
- Best for: Users who want a broad size range and a complete starter kit for metal, PVC, and wood.
- Why selected: Balanced blade count and included accessories; straightforward for setups and quick swaps.
- Caution: Ensure proper alignment when switching blades to avoid binding on thin materials.
KATA Bi-Metal Hole Saw Kit (18 pcs)
The KATA kit offers 18 pieces with sizes ranging from 19 mm to 64 mm, plus two mandrels, four drill bits, and a hex key. The blades use M42 steel bi-metal construction for rust and wear resistance, and the teeth are designed for high precision. It’s well-suited for cutting through thin metal and hardwood, drywall, and general-purpose projects. The storage case helps keep tools organized for frequent users.
- Best for: Professionals or serious DIYers who frequently switch between metal and wood materials.
- Why selected: Reliable M42 bi-metal blades with a solid size range and case storage.
- Caution: May require slower feed rate on very hard metals to avoid tooth wear.
Diablo 9-Piece Kit Bi-Metal Hole Saw Set
Diablo’s kit emphasizes deep-cut capacity and quick-change convenience with Snap-Lock Plus mandrels. The nine-piece set is designed to deliver deeper holes up to 2-3/8″ in a single pass, increasing productivity on wood, metal, and plastic. The universal mandrel compatibility across sizes simplifies tool management on job sites, particularly for users who regularly drill different diameters.
- Best for: Projects requiring deeper holes and fast diameter changes without downtime.
- Why selected: Deep cut capacity and Snap-Lock Plus integration streamline workflow.
- Caution: Snap-Lock systems require compatible Diablo mandrels; verify compatibility if mixing brands.
dashap Bi-Metal Hole Saw Kit (13 pcs)
The dashap set includes 13 hole saws from 19 mm to 76 mm, plus two hex keys and individual mandrels. It emphasizes rugged bi-metal teeth designed for faster, cleaner cuts in thin metal and wood, with some alloy protection against corrosion. This kit is a solid choice for users who need a broad diameter range in a single, organized package.
- Best for: Crafters and builders who require a wide diameter range for various metal and wood tasks.
- Why selected: Comprehensive size range with individual packaging for easy inventory control.
- Caution: Not all sizes may be ideal for very hard metals; consider additional carbide-tipped options for extreme metals.
Buying Guide: Bi-Metal Hole Saw Kit Essentials
- Blade material and hardness: Bi-metal blades combine high-speed steel teeth with a flexible alloy backing. Look for hardness around 69–81 HRC for longer life and cleaner cuts.
- Tooth design and pitch: Coarser pitches cut faster on wood and drywall, while finer teeth handle metal and thinner materials with less burr.
- Cut depth and diameter range: Check the maximum cutting depth and the range from small to large diameters to match your typical projects.
- Mandrels and compatibility: Ensure the kit includes mandrels and that they fit your drill and other brand tools if you mix sets.
- Case and organization: A sturdy storage case helps keep blades sharp and reduces misplacement in busy workspaces.
- Material compatibility: If you work with metal, PVC, wood, drywall, and plastics, prioritize sets explicitly listing these materials.
- Safety and technique: Use proper PPE and apply steady pressure with appropriate feed rates to avoid blade binding or wand-wobble.
Frequently Asked Questions
- What is a bi-metal hole saw kit best used for? – It is best for cutting holes in metal, wood, PVC, drywall, and plastics, offering durability and broad material compatibility.
- Do all hole saw kits include mandrels? – Many kits include mandrels, but it’s wise to verify package contents before purchase.
- How deep can a typical bi-metal hole saw cut? – Depth varies by blade; check the maximum cutting depth listed for each size in the kit.
- Is cobalt or M42 steel necessary? – Cobalt or M42 bi-metal blades provide faster cutting and longer life on tougher materials but may come at a higher cost.
- Can I use any hole saw kit with my drill? – Most standard kits use common arbor sizes; confirm compatibility with your drill chuck and arbor threads.
- When should I replace blades? – Replace when teeth become dull, chipped, or you notice excessive heat and poor cutting quality.