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Slotted Prewinders reduce the insert to its installed diameter before it enters the hole, helping to make the installation process much easier and faster, and also reduce the chance that the insert will skip a thread. Prewinder tools are highly recommended for installation of fine pitch and small diameter inserts. Larger sizes are available upon request.

87527S9/16 – 12 Slotted Prewinder
87529S5/8 – 11 Slotted Prewinder
87531S3/4 – 10 Slotted Prewinder
87533S7/8 – 9 Slotted Prewinder
87535S1 – 8 Slotted Prewinder