The Sutton 12 Piece Bi-Metal Holesaw Set (H125SG12A) is a professional-grade cutting kit designed for clean, accurate hole cutting in metal, wood, plastic, and composite materials.

Manufactured using high-performance bi-metal cobalt HSS, this set is engineered for durability, heat resistance, and long cutting life in demanding trade environments.

Ideal for electricians, plumbers, builders, and maintenance trades needing reliable hole cutting across multiple materials.

Why Choose a Bi-Metal Holesaw Set?

Bi-metal holesaws are the most versatile option for general trade use because they:

• Cut both metal and timber with a single set
• Resist heat build-up during heavy drilling
• Last longer than standard HSS saws
• Produce cleaner, more accurate holes than low-grade kits
• Work in both hand drills and drill presses

 This makes them the go-to choice for “all-round” workshop and site work.

Key Features

• 12-piece professional holesaw kit
• Sizes from 16mm to 51mm
• Bi-metal cobalt HSS construction for durability
• 32mm cutting depth for standard trade applications
• Varied pitch tooth design reduces vibration
• Fast chip removal slots for efficient cutting
• International thread compatibility (fits common arbors)
• Suitable for hand drills and drill presses

Included Sizes

This set includes:

• 16mm
• 19mm
• 22mm
• 25mm
• 29mm
• 32mm
• 35mm
• 38mm
• 44mm
• 51mm

Plus arbor system and pilot drill components (varies by kit configuration).

Applications

This holesaw kit is widely used in:

Electrical

• Downlight holes
• Cable access points
• Switchboard modifications

Plumbing

• Pipe penetration holes
• Drainage and service access

Construction & Carpentry

• Timber framing penetrations
• Gyprock and sheet material cut-outs
• General site installation work

Metalwork

• Light steel sheet cutting
• Enclosures and panels
• Fabrication and maintenance tasks

Performance & Cutting Quality

The Sutton H125 series is designed for:

• smooth, controlled cutting
• reduced vibration for cleaner holes
• improved tooth life in steel and timber
• consistent performance under load

The bi-metal cobalt construction allows the teeth to flex without breaking, making it significantly more durable than standard carbon steel holesaws.

Best Practices for Use

To get maximum performance:

• Use moderate drill speed for metal
• Apply cutting fluid when drilling steel
• Allow teeth to clear chips regularly
• Do not force the saw—let it cut gradually
• Use correct pilot drill alignment for accuracy

 Proper technique significantly extends blade life.

Limitations

This kit is ideal for general trade use, but:

• Not designed for thick structural steel
• Cutting depth is limited to 32mm
• Carbide TCT holesaws are better for abrasive materials like fibre cement or heavy timber production work

Product Specifications

• Product code: H125SG12A
• Type: Bi-metal holesaw set
• Pieces: 12
• Cutting range: 16mm–51mm
• Cutting depth: 32mm
• Material: Bi-metal cobalt HSS
• Application: Metal, wood, plastic, composites
• Origin: Sutton Tools (Australia)

Who This Product Is For

Ideal for:

• electricians and apprentices
• plumbers and builders
• general contractors
• maintenance technicians
• trade professionals needing a versatile cutting kit