Timber, Plaster & Plasterboard's. 40mm (1 1/2") = 41Approx. 30mm (1 1/4") = 55Approx. 20mm (3/4") =82 Approx. 25mm (1") = 58Approx. High Quality Stainless Steel Pin's. Hardened Tip's enables pin's to be used on hard surfaces.
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