Product Review

TIPS:
* 5/64" bit can drill a hole(hole diameter is 2mm) for screws whose diameter is 2.2-2.8mm;
* 7/64" bit can drill a hole(hole diameter is 2.8mm) for screws whose diameter is 3-3.5mm;
* 9/64" bit can drill a hole(hole diameter is 3.5mm) for screws whose diameter is 4-4.5mm;
* 11/64" bit can drill a hole(hole diameter is 4.5mm) for screws whose diameter is 5-5.5mm;
* 5mm bit can drill a hole(hole diameter is 5mm) for screws whose diameter is 5.5-6mm;
* 13/64" bit can drill a hole(hole diameter is 5.2mm) for screws whose diameter is 6-6.5mm;
* 1/4" bit can drill a hole(hole diameter is 6.35mm) for screws whose diameter is 7-7.5mm;

USAGE SUGGESTION:
Please choose the sutiable size depend on the wood's hardness level:
* If the wood is a soft one, choose relative one size smller;
* If the wood is a hard one, choose the corresponding size or relative one size larger.

PACKAGE LIST:
8 x Centering Drill Bits
1 x L Wrench
1 x Plastic Case