3-12mm 4-12mm 4-20mm HSS Straight Groove Step Drill Bit

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1735 In stock
This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high-quality HSS steel, and with the Titanium coated to reduce friction...

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This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high-quality HSS steel, and with the Titanium coated to reduce friction and heat

It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc

Features

Made from high-quality HSS steel
Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
Titanium coated to reduce mit and heat
Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood, etc.
3 sided shanks design in order to prevent slippage when in the chuck
Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps

Function

Deburring, Chamfering, Cutting or expanding holes
Supporting tools: Pistol drill, Hand drill, Charging drill, Bench drill.

Rotating Speed

3-12 speed:260-400
4-12 speed:260-400
4-20 Speed:180-240

Suitable Material

Workpieces with general hardness, such as wood, plastic, PVC plate, iron plate, plate thickness within 3MM. Please note that stainless steel and spring steel are not applicable. Not for quenching. (Water injection cooling while working, it can effectively extend the service life of the drill bit, especially in the case of continuous drilling)

Attention

Because the outer diameter of each step of the step drill is gradually expanded, then the corresponding cutting resistance and linear velocity will also be gradually increased.
Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length, If the feed speed is too fast when drilling, it will be easier to be annealing caused by abrasion of the oblique edge.
Please give a downward force when drilling, do not press down too hard to avoid the edge wearing.

Length

3-12mm Length: Approx. 7.9cm/ 3.11"
4-12mm Length: Approx. 6.7cm/ 2.64"
4-20mm Length: Approx. 7.4cm/ 2.91"

Package Includes

1 x Drill Bit 3-12mm
1 x Drill Bit 4-12mm
1 x Drill Bit 4-20mm
1 x Bag

⚡️Stock sells fast - get yours today!

 

Shipping

Our goal is to offer you the best shipping options, no matter where you live. Every day, we deliver to hundreds of customers across the world, ensuring that we provide the highest levels of responsiveness to you at all times.

Standard Shipping(Delivery to 10-30 working days) Price: $5.99 postage for orders under $69.99;(North America:$5.99)United States: Standard Shipping Price: $4.99 postage for orders under $69.99; Europe: Standard Shipping Price: $5.99 postage for orders under $69.99; Other countries: Standard Shipping Price: $5.99 postage for orders under $69.99;

Return Policy

If you want to exchange, please contact our customer service. We can only handle the exchange of different sizes or colors of the same product.of course.customer pays the shipping cost on exchange.If you want to exchange for other goods, please directly choose to return and repurchase. We cannot keep the items to be exchanged. If we do not have any products in stock when we receive your return, we recommend that you wait patiently or choose a refund.

Once your return is received and inspected, we will email you a notification of receipt. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund, please contact us at service@miracletrees.store.

24-Month Warranty 

Register your products and get extra benefits

24 Months Free warranty extension: In addition to our regular 12 months warranty, register your product can extend the warranty on their miracletrees products to 24 months.

Note: Warranty extension is not valid for used goods.

The limited warranty provided by the manufacturer shall in no way affects the potential statutory warranties provided by law. miracletrees reserves all the rights for the final explanation.

30 Days Free-Reason Return Policy 

 

Undamaged products may be returned for a full refund for any reason within 30 days of the date the item was delivered to the designated shipping address. Once the returned item arrives back in miracletrees’s warehouse for inspection, the refund process will begin.

Worldwide Shipping

We accept order cancellation before the product is shipped or produced. you will get full refund.

Long Time Warranty

Undamaged products may be returned for a full refund for any reason within 30 days of the date the item was delivered.

Best Customer Service

If you have any questions about products or logistics, you can contact us at service@miracletrees.store

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