Hole saw set EINHELL kwb 499700 — 5-piece set for drill, suitable for wood, plastics, acrylic, non-ferrous metal

EINHELL kwb 499700 is a 5-piece hole saw set designed for use with an electric drill. The kit contains five interchangeable saw cups with a heavy zinc-alloy arbor and teeth made of hardened spring steel with induction-hardened cutting edges. The set is intended for cutting clean circular openings in materials such as hardwood, softwood, laminated boards, blockboard, acrylic, plasterboard, general plastics and non-ferrous metals, making it suitable for installations, plumbing, electrical work and general woodwork.

Advantages

The hole saws feature induction-hardened teeth for extended cutting life and maintain sharpness when working through a variety of materials. The heavy zinc-alloy arbor provides stable guidance and durability during drilling, while the hardened spring steel construction of the cutting edges offers resistance to deformation. The set’s configuration of five saw sizes covers common hole diameters for fittings and fixtures, and the blister packaging keeps the components organized and accessible.

Suitable for

• Creating circular openings for plumbing and pipe installations
• Cutting holes for electrical boxes, switches and fixtures
• Cutting through wood, laminated boards and cabinetry work
• Making openings in plasterboard and lightweight building materials
• Cutting acrylic, general plastics and thin non-ferrous metal sheets

Key specifications

• Number of pieces: 5 saw cups
• Arbor material: heavy zinc-alloy
• Tooth material: hardened spring steel with induction-hardened cutting edges
• Suitable materials: hardwoods, softwoods, blockboard, laminated boards, plasterboard, acrylic, plastics, non-ferrous metals
• Packaging: blister pack for organized storage

How to use

Fit the appropriate saw cup onto the zinc-alloy arbor and secure it to the drill according to the drill manufacturer’s instructions. Mark the center of the hole on the workpiece and, where possible, use a pilot bit or guide to keep the saw steady. Start drilling at low speed to create a pilot indentation, then increase speed and apply steady, even pressure. For thicker or denser materials, use moderate feed force and allow the teeth to cut without forcing. Clear chips often to prevent clogging and overheating. After cutting, remove the saw cup and deburr the hole edges if necessary.

Usage recommendations

Use appropriate personal protective equipment including eye protection and gloves. Match drill speed and feed pressure to the material: lower speeds for metals and acrylic, medium to higher speeds for wood and plastics. When cutting non-ferrous metal or acrylic, use light, consistent pressure and pause occasionally to clear chips and avoid overheating. For best results in thin or fragile materials, support the workpiece to reduce splintering and ensure a clean cut.