Paired with Grex P6-35L 1-3/8″ headless pins, you get deep hold without visible nail holes — no filling, no sanding, no callbacks. Grex P635 Pinner. This bundle includes two full boxes of Grex P6-35L pins (10,000 per box, 20,000 total) — engineered for the P635 to drive straight, clean, and strong.
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