• Used as locators or "feeler" bits to find a specific wall cavity
• Perfect for mapping out speakers in a ceiling
• .047" x 36" - 10 per pack
• Also available in .062" and .072" diameters
• The 36" bits can easily be cut to any length needed
• Leaves a hole so small in will be unnoticeable
• One Year Warranty on Manufacturers Defects