# yyf tool+ kevlar string= breakage?

**URL:** https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449
**Category:** Looking for Help/Recommendation
**Created:** [August 14, 2012, 3:07am UTC](https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449 "2012-08-14T03:07:41Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![yoyo\_creep](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyo_creep/32/908_2.png) [@yoyo\_creep](https://forums.yoyoexpert.com/u/yoyo_creep)
#### Post date: [August 14, 2012, 3:07am UTC](https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449/1 "2012-08-14T03:07:41Z")

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Yup. Well, I cut a Kevlar string with my tool and well… it can’t cut a poly anymore. Could this be why? Oh and I’ve cut maaaybe cut 10 poly string beforehand. Help?

-the creep

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### Author: ![anonyo](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@anonyo](https://forums.yoyoexpert.com/u/anonyo)
#### Post date: [August 14, 2012, 3:09am UTC](https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449/2 "2012-08-14T03:09:18Z")

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Kevlar will severely dull a sharp blade.

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### Author: ![yomagic](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yomagic/32/131_2.png) [@yomagic](https://forums.yoyoexpert.com/u/yomagic)
#### Post date: [August 14, 2012, 3:28am UTC](https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449/3 "2012-08-14T03:28:22Z")

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I had this same problem…no I remember why It doesn’t cut well

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### Author: ![Big\_Yoyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/big_yoyo/32/1032_2.png) [@Big\_Yoyo](https://forums.yoyoexpert.com/u/Big_Yoyo)
#### Post date: [August 27, 2012, 2:36am UTC](https://forums.yoyoexpert.com/t/yyf-tool-kevlar-string-breakage/41449/4 "2012-08-27T02:36:46Z")

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Just pull it through harder