Hole saw GRAPHITE 57H904 — circular cutting blade, single piece, 32 g

GRAPHITE 57H904 is a single-piece hole saw designed for drilling round openings and making precise circular cuts. The tool is supplied as one unit and weighs approximately 32 g. Constructed as a bimetal cutter with progressive teeth made of high speed steel, it is suitable for a range of light-duty material preparation and repair tasks when used with compatible drill chucks and appropriate pilot bits.

Advantages

The bimetal construction combines a flexible alloy body with high speed steel teeth to balance durability and cutting performance. Progressive tooth geometry reduces vibration and improves chip evacuation, enabling smoother, more accurate cutting. The single-piece design simplifies mounting and reduces the risk of component loosening during operation. Its low weight makes handling easier during extended use and helps maintain drill stability.

Suitable for

• Cutting holes in steel and stainless steel (light-duty applications)
• Drilling openings in wood and wooden panels
• Creating holes in plastics and composite materials
• General maintenance, repair and installation tasks requiring circular openings

Key specifications

• Type: single-piece circular cutting blade (hole saw)
• Material of cutting edge: high speed steel teeth
• Body material: bimetal construction
• Tooth design: progressive tooth geometry for efficient cutting
• Weight: approximately 32 g
• Compatibility: designed for use with compatible drill chucks and pilot bits

How to use

Secure an appropriate pilot bit in the drill and mount the hole saw into a compatible chuck or arbor following the drill manufacturer’s instructions. Mark the center of the intended opening and start drilling at low speed to establish the pilot location, then increase speed moderately while applying steady, even pressure. Allow the cutting edge to do the work; avoid forcing the saw to prevent overheating and premature wear. For metals, use cutting lubricant or coolant as recommended for the material to extend tool life. After completing the cut, remove the cutter and clear chips from the opening before final finishing.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves, hearing protection) and ensure the workpiece is securely clamped. Match drill speed and feed to the material: lower speeds for harder metals, higher speeds for wood and plastics. Regularly clear chips and apply cutting fluid when working with steel or stainless steel to maintain cutting performance and prolong tool life.