The LeadSlinger® is NTI's precision-machined mechanical pencil — built with the same quality, modularity, and USA-made craftsmanship as every pen in the lineup. Hexagon profile. Old-school feel. Modern precision. Designed by Lee Nottingham to work with any NTI Parker pen body, so you can convert your pen to a mechanical pencil in seconds.
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100% Machined & Assembled in the USA · Designed by Lee Nottingham · No Grease · No Maintenance
The Only Mechanical Pencil That Works With Your NTI Pen Body
The LeadSlinger® is built on the Parker 5" format — swap it directly into any NTI Parker pen body and go from ballpoint to mechanical pencil without buying a new pen. Same modular system. Same precision. Just lead.
FIND YOUR LEADSLINGER
LeadSlinger® Standard
Original
Press the top to advance the lead. Simple, smooth, and satisfying — the classic hex profile with the precision you expect from NTI. Great for everyday carry, journaling, or sketching.
LeadSlinger® SL
Safety Lock
Press the button-lock while pressing the top to advance lead. Originally designed for a US Naval pilot — built for those who need their pencil locked until they're ready. Same trusted hex feel, zero accidental deployment.
