Drill Bits & Accessories

The Blu-Mol BL527 Holesaw (43 mm / 1-11/16") is part of the Blu-Mol Xtreme bi-metal holesaw range. It is engineered for heavy-duty hole cutting in materials such as wood, metals, plastics, and composites. It combines a tough bi-metal cutting edge with variable tooth geometry and a solid steel backing plate to deliver strength, durability, and a cleaner cut while minimizing vibration and heat build-up. It is suitable for both hand-held drills and drill presses in trade, industrial, or DIY settings.

Features:
*Bi-metal construction with M42 cobalt cutting edge for wear resistance and long life.
*Variable tooth (4/6) configuration for smoother cutting and reduced vibration.
*Heavy-duty solid steel backing plate (5 mm thick) for strength and heat dissipation.
*Thin kerf design (0.044") reduces cutting load for faster penetration.
*Large depth of cut (48 mm / 1-7/8") to handle thicker materials in one pass.

Specifications:
*Manufacturer: Blu-Mol
*Part Number: BL527
*SKU: BLU527
*Diameter: 43 mm / 1-11/16"
*Depth of Cut: 48 mm / 1-7/8"
*Blade / Teeth Type: Bi-metal with M42 cobalt cutting edge
*Backing Plate: Solid steel, 5 mm thick
*Kerf / Blade Thickness: 0.044"

Uses:
*Cutting precise holes in wood, plastics, and composites.
*Cutting through metals such as steel, aluminium, brass, and cast iron.
*Ideal for plumbing, electrical, HVAC, and construction installations requiring larger diameter holes (pipe, conduit, ventilation, etc.).
*Suitable for workshops, maintenance jobs, and use with both portable and stationary drills.