Wiseman Threading Tools Hand Tap - Bottom Lead Tap - +0.015 Tolerance - M24x3The Wiseman Threading Tools Hand TapBottom Lead Tap with a +0. 015 tolerance and an M24x3 thread sizedelivers precise internal threading by hand for demanding metalwork. Designed for accuracy and repeatable results, this hand tap guides each rotation to produce clean, consistent threads that accept fasteners with a secure, accurate fit. Bottom lead design starts threads smoothly and helps maintain alignment in tight or recessed holes, reducing the