Best Seller | 2Pc Irwin Speedbor 6 in. Steel Wood Boring Bit Extension 1/4 in. Quick-Change Hex Shank 1 pc IRWIN 6 Extension Bit allows you an extension of 6 inches to allow your drilling or driving application to be done in tight and hard to reach spaces. Durable and portable this extension bit can be carried along in your tools box with ease. more | | $30.22 FREE shipping go to store |