Festool 493423 Centrotec HSS Spiral Drill Bit Set With Reusable Shank， 4.0mm<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Set includes 4mm HSS Spiral drill bits (Qty 3)， and a reusable Centrotec shank for fast， efficient and precise drilling</li><li>Precision-ground HSS steel stays sharp longer for precise hole drilling and a long service life</li><li>Tip grind and flute design are ideal for drilling into wood， metal and plastics</li><li>Centrotec design can be used with Centrotec Chuck System， or with any three-jaw keyless chuck system</li><li>Includes 3 bits， reusable Centrotec shank， set screw and allen wrench</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31qVqsBZ4sL.jpg" noproxy>