Joint Router Bit Tongue & Groove 1/2'' 1/4 Shank Adjustable Wood Router Bits

1PC 3Flutes Countersink Drill Bits 20.5/25/30mm 90 Degree HSS Chamfering Cutter. Shank: 1/4"(6.35mm), 1/2"(12.7mm), 6mm, 8mm, 12mm. 6mm-100mm Diamond Hole Saw Cutter Drill Bit Set for Tile Glass Ceramic Marble.

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