1.7 PIECES SET: 7 drill bits in a total of 1/4" 5/16" 3/8" 2/5" 1/2" 9/16" 5/8" spec to meet your different needs.
2. HSS Material: Made of high speed steel material, heat treated these square drill bits have high hardness and long life.
3. Widely used: square drill bits are very suitable for drilling square holes in wood using mortise machine or mortise accessories.
4. Sharp Chisels: These drill bits are equipped with sharp corner chisels to improve the work efficiency.
5.ACCURATE SIZING: These square hole drill bits are finely made and accurate in size, perfectly matched with electrical machinery. > Drilling Size: 6.4mm (1/4") 8.0mm (5/16") 9.5mm (3/8") 10mm (2/5") 12.7mm (1/2") 14mm (9/16") 16mm (5/8")
Package List:
7 x Square Drill Bits for Woodworking
7 x Storage Boxes