This 1/4" bimetal drill bit is perfect for drilling the pilot hole through the gelcoat and fiberglass of the boat, and the guide bit for using our Bimetal Hole Saw Bits when installing new thru-hulls.
This 1/4″ bimetal drill bit is perfect for drilling the pilot hole through the gelcoat and fiberglass of the boat, and the guide bit for using our Bimetal Hole Saw Bits when installing new thru-hulls.
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