Great quality spoke wrench from Park tools, the 0.127 inch (black label) version is perfect for all DT spoke nipples sold by us.

We were so impressed with the quality of these spoke keys that we now use them on all wheels built at JRA. The excellent fit and shape doesn't damage nipples or anodizing (if used correctly) and it should last virtually forever. Comfortable to use too.
 
Park say:

• Destined to become a classic!
• The Master Mechanic spoke wrench is an investment cast workhorse poured from the best steel, precisely machined, heat treated for hardness then polished and plated
• The result is a smooth, solid steel spoke wrench designed and built to fit perfectly in your hand and provide years of every day service
• A classic, and maybe your new favourite tool!
• Black is for 80 gauge / 0.127 inches / 3.23 mm