3-12mm 4-12mm 4-20mm HSS Straight Groove Step Drill Bit Titanium Coated Wood Metal Hole Cutter Core Drilling Tools Set

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The drill bit produces more resistance when drilling metal for a long time. Please provide some lubricating oil or water at the drilling position to reduce some resistance

Suitable material: Workpieces with general hardne, such as wood, plastic, PVC plate, iron plate, plate thickne within 3MM. Please note that stainle steel and spring steel are not applicable. Not for quenching. Made from high quality HSS steel Ideal for using to cut holes in a variety of materials including steel, bra, wood, plastic, etc. Titanium coated to reduce friction and heat Heat treated and highly polished. Drills perfectly round holes in steel, bra, plastic, wood etc. 3 sided shanks design in order to prevent slippage when in chuck Two flute design provides faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps Specification: Surface treatment: Titanium Plating Color: Golden

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Shipping and Packaging All itwill be double checked and well packed before sending.Itwill 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 remote areas,it may take a little longer). 

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Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

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If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.