Check the listing for details. Bondhus Ball ended Metric Hex Key Set. Condition: New. Listed at 33.18 USD. Untitled Document BONDHUS ......The best Ball-Ended Hex keys available.... these are the very best with a full manufacturers warranty. This 15 piece set contains all of the metric sizes available including half sizes. ALL CONTAINED IN A CONVENIENT WALLETT...BUY THE BEST MANY CUSTOMERS HAVE AND NEVER REGRETTED THEIR ACTIONS. YOU CAN BUY CHEAPER BUT NOT BETTER!!! Sizes 1.27 mm; 1.5 mm; 2.0 mm; 2.5 mm; 3 mm; 3.5 mm; 4 mm ; 4.5mm ; 5 mm; 5.5 mm; 6 mm; 7 mm ; 8 mm; 9 mm; 10 mm. All Bondhus® products are guaranteed for life. If you are not happy with a Bondhus® tool - for any reason - simply return it. A replacement will be shipped right out at no cost - no hassles, no questions asked! Bondhus advantages: Bondhus uses proprietary Protanium® Steel, not common alloys such as 8650. The hardness values of up to 60 RC (and above) achieved by Bondhus tools are unattainable with lower grades of steel. Bondhus tools also achieve the highest degree of ductility and durability in the industry.