Hitachi 321823 1/4-Inch Hex Drive 3/8-Inch Keyed Chuck Adapter with Key

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• Milwaukee 48-32-1500 Quik-Lok 38-Piece Hex Shank Drilling and Driving Bit Set
• Milwaukee 2401-22 12-Volt Li-ion Sub-Compact Driver Kit
• Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers

Item performs exactly as described. Avoids buying more Power Screwdriver attachments. Provides me with a connection between my new Power Screwdriver (hex drive) and my extensive collection of Magna-Tip screwdriver/nut driver bits (keyed chuck).

The 1/4" adapter fits into my drill, however it does not 'lock' in like my other bits. The recessed area that is supposed to 'lock' into is too high up and therefore the entire attachment falls out of my drill. Very unsafe.

I put this in my 18v impact driver and attached a step drill. The minute the bit started cutting the metal the head of the bit sheared away from the shaft.

This Chuck Adapter by Hitachi is made in Germany and crafted with excellence.Unfortunately not available in the Netherlands, but fortunately there is AMAZON.com.Very fast deliveryGreat work.HvdM

Add this item to your list of accessories for light-weight drill/drivers with 1/4" hex drive. Also, the key provides a high-torque grip on the tool shanks which eliminates slippage. Now you can use all the miscellaneous drills you currently have without buying sets with 1/4" hex shanks. This product is well machined with a quality feel when using the key.