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Wood drill bit 4 mm extreme length (300 mm!)
Number of pieces in this set: 10
Starts drilling on center, eliminates the need for a center punch.
12" (300 mm) long, perfect for thick pieces of wood.
Made of high carbon steel with heat treatment, HRC48~50.
We have the following sizes in stock: diameters 4, 5, 6, 7, 8, 10, 12 mm.