Click to expand Tap to zoom Mak D-35651 12" Drill Bit Extension, 7/16" Hex Shank by Makita Sold out $14.99 | / SKU D-35651 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out About Model Features Attaches to 7/16" hex shank drill bits to allow deeper drilling in wood High strength steel construction for long life Set hex screw ensures a tight connection to the bit For use with drills that feature 1/2" capacity chucks