3.0-6.0mm Cobalt Coated Twist Drill Bit Set Super Hard Drill Bit For

Item Type: Drill Bits Material:M35 Contains Cobalt Application:Wood, Aluminum Alloy, Zinc Alloy, Steel, Iron, Stainle Steel Product specifications: 3.0mm,3.2mm,3.5mm,4.0mm,4.2mm,4.5mm,5.0mm,5.2mm,6.0mm Package list: Color:3.0-6.0mm 9pcs(1pc * 3.0mm+1pc*3.2mm+1pc * 3.5mm+1pc * 4.0mm+1pc * 4.2mm+1pc * 4.5mm+1pc * 5.0mm+1pc * 5.2mm+1pc * 6.0mm) Color:4.2mm5.2mm 4pcs (2pc*4.2mm+2pc*5.2mm) Features: 1.Surface roasting proce is not easy to rust 2.Using optimal steel, the hardne is as high as HRC64 3.Double head can be used, save money and time 4.Spiral big U groove, the cutter head is sharp and not easy to stick to chs Note: 1.It is recommended to drill a hole ≤15 deep. 2.The packing list only cite two specifications for reference, the others directly look at the picture and the specification name. 3.If there is any problem with the product, please contact me before you leave a comment, I will do my best to soe the problem for you.Thank you for your understanding.

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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