Center Drill Bit Self Auto Centering Hinge Drill Bit Set for Woodworking Door Window Cabinet Total 10 PCS

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

• 【Material】 High speed steel drill bit, covered by a brass shell, more durable and excellent for usage
• 【Self Centering】 Automatic centering bring more accuracy and efficiency; 2 holes design can discharge sawdust faster
• 【Various Sizes】 Total 8 bits: 5/64", 7/64", 9/64", 9/64", 11/64", 5mm, 13/64", 1/4"; all are 1/4" hex shank
• 【Attention】 Choose low speed when drilling (2000R/min - 3000R/min is good); If too fast, bit may fail to centering, get broken or jammed
• 【Usage】 perfect for woodworking, door, window, cabinet, hinges, drawer slides, etc