Description
These adapters from Robert Schröder of Germany add versatility to your Yankee®-type spiral screwdriver (or to enable you to put one back into service that has no driver bits). The notched shank of the Schroeder adapter fits into your spiral ratcheting screwdriver and allows you to use any 1/4″ hex-shank bit of your choosing. A magnet in the bottom of the socket magnetizes the driver bit and holds it in place.
Three sizes are available to fit many of the spiral ratcheting screwdriver models sold over the years. 2-7/8″ overall length. Driver bits are not included.
Please measure an existing round shank bit that fits your tool to make sure you order the correct size.
Shank Diameter
- 5.5mm (~7/32″) – Small – Fits Yankee® type 235, 133, 233 & some others
- 7mm (~9/32″) – Medium – Fits Yankee® type 130 & some others
- 8mm (~5/16″) – Large – Fits Yankee® type 131 & some others
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