Masonry Tip Optibits This Optibit has a Carbide Tipped Masonry Bit tip. All the Optibits listed on this page have a 3/16" flexible shaft, 3 precision ground flats (prevents slippage), and 2 wire pull holes with one at each end. The shaft is bonded up into the bit tip for additional strength. Designed with slow back-tapers for easy retrieval. Feedback from our customers has been only positive with respect to this line.
A Good Choice, for Those Looking for Economy, Performance, and Longevity.