Flawless Floor Sanding — The Family Handyman
Sep 30, 2019 · When you're sanding, nail heads will rip the sanding belt (which costs you money) or gouge the sanding drum (which costs you more money). So countersink all nails by at least 1/8 in. To detect nails, drag a metal snow shovel across the floor (upside down). When it hits a nail, you'll hear it.
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