May have been submitted before. I’ve been using these in the shop for 20 yrs now. Very handy for quick fixes. Also believe it or not removing router burns from hardwood. Care is required when doing this, so not to distort the profile. Overall handy for flushing a dowel pin to flattening a surface. The uses in the shop are endless.
A properly installed 4-in. corrugated drainage pipe running under a driveway can withstand the pressure of a 40,000-lb. truck.
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