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Diameter 1.2mm x 20pcs HSS 6542 PCB mini drill Bit tungsten steel carbide for print circuit board cnc drill Bits Machine Tools

60 % of buyers enjoyed this product!
In stock
Sale Price: US $0.32
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery
On-time Delivery
Guarantees: On-time Delivery 60 days


  • Size: Diameter 1.2mm
  • Material: HSS 6542 (M2)
  • Product Name: Straight Shank Twist Drill Bit
  • Machine: used by Hand Drill, Impact Drill, Bench Drill
  • Application: used for Wood, Stainless Steel, Aluminum, Metals, Iron, Copper, Galvanized Pipe etc.
  • Quanity: 20 pcs
  • Quality Grade: Professional Quality

Tips: Please allow a little size difference and color difference.


Because of different hardness, thickness and material, when you use the drill bits, you need to know some information in advance. It does not mean the speed is faster, the drilling will be faster. If you use it, the drill bits will be broken quickly. When you use the drill bits, you need to control the speed of the machine. The information as follows:

1. Diameter 1mm-2mm, you need to add the water to cool the drill bit

2. Diameter 2mm-3mm, the speed should be maintained at 1500rpm

3. Diameter 3mm-4mm, the speed should be controled at 1000rpm

4. Diameter 5mm-6mm, the speed should be controled at 750rpm

5. Diameter 6mm-10mm, the speed should be controled at 500rpm

6. larger than Diameter 10mm, the speed should be controled at 200-500rpm

If you want to buy better quality, you could choose the material M35 which include Cobalt 5%.

M35 Cobalt 5% Drill Bits:

Attentions: Those product photos are only for your review. The real product maybe a little size and color difference.

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2) Payment must be made within 3 days of order.

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1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within 60 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.
2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#.
3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.
4. We will bear all the shipping cost if the product(s) is (are) not as advertised.

1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
You agree to all of the above-listed policies upon ordering on aliexpress!

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $0.32 / lot