Reducer for saw blades GEKO model 7178627 — arbor adapters 30→25.4/22.2/20/16/12.7 mm

Reducer set GEKO model 7178627 adapts a 30 mm arbor to saw blade bore sizes 25.4, 22.2, 20, 16 and 12.7 mm. Designed as arbor adapters for circular saws and woodworking blades, the set allows use of blades with different inner diameters on a single machine while providing correct centering and secure mounting.

Advantages

The GEKO reducer set provides a simple mechanical solution to fit blades with smaller center holes onto a 30 mm arbor. It includes multiple concentric rings for stepwise reduction, ensures stable concentric mounting and reduces vibration caused by improper fit. The rings are compact, easy to install and remove, and compatible with a wide range of woodworking saw blades and circular saws that use a 30 mm arbor.

Suitable for

• Workshops using a circular saw or table saw with a 30 mm arbor
• Carpentry and joinery tasks requiring different blade bore sizes
• Home DIY projects where multiple blade types are used on one machine
• Replacement of worn or missing arbor adapters

Key specifications

• Brand: GEKO
• Model / MPN: 7178627
• EAN: 5901477178627
• Original arbor diameter: 30 mm (center hole of blades)
• Adapter bore sizes included: 25.4 mm, 22.2 mm, 20 mm, 16 mm, 12.7 mm
• Type: arbor reducer / adapter rings for saw blades

How to use

Select the adapter ring that matches the inner diameter of the saw blade. Place the selected reducer ring onto the 30 mm arbor, ensuring it seats concentrically, then mount the blade over the ring and secure with the saw's flange and nut according to the machine manufacturer's instructions. Verify that the blade runs true and tighten fasteners to the specified torque before use.

Usage recommendations

Check blade compatibility and machine manual before fitting adapters. Always switch off and unplug the saw, and follow safety procedures when changing blades. Inspect reducer rings for wear or damage and replace if they do not provide firm concentric seating.