This 3 piece hole enlarging tool set from wolfcraft is an excellent and safe standard solution for neat and centred enlarging of existing boreholes using a hole saw.

• Hole enlarging tools: The hole enlarging tool for existing holes of 35-51 mm diameter can be used with hole saws from 60 mm, the tool for holes of 46-62 mm with hole saws from 68 mm, and the tool for holes of 54-70 mm with hole saws from 76 mm.
• Convenient attachments: The set also contains an insertion aid as well as three steel drilling bushes with diameters of 6, 8 and 10 mm that can be installed to suit the diameter of your hole saw.
• Handy conical plastic cylinder: The clever innovation consists of an excellent conical plastic cylinder that you screw into the existing borehole with ease using the integrated thread.
• Precise work: The hole enlarging tool also guarantees centred alignment with the existing borehole. This enables you to maintain an even hole pattern when drilling series of holes, e.g. when upgrading halogen ceiling spots to a larger LED system.
• Easy to drill: Simply position the hole saw, drill the hole and then remove the hole enlarging tool together with the drilling core. The hole-enlarging tool also makes working overhead super easy.