2-56 3 Flute HSS STI Straight Flute Tap Helicoil Twinsert 3887-02
Not in original packaging
Twinserts are used to correct STI or standard tapped holes that are stripped,
off-center, damaged or beyond the correction range of Oversize Inserts or
standard HeliCoil Inserts.
Please note that Twinsert taps are larger than standard STI taps.