PATIKIL 1.75mm Micro Drill Bits 1/8" Shank Carbide Tungsten Steel 135° Mini Small Bits Print Circuit Board Drilling Tool for CNC Engraving Precision Machinery - 20 Pack
PATIKIL 1.75mm Micro Drill Bits 1/8" Shank Carbide Tungsten Steel 135° Mini Small Bits Print Circuit Board Drilling Tool for CNC Engraving Precision Machinery - 20 Pack
PATIKIL 1.75mm Micro Drill Bits 1/8" Shank Carbide Tungsten Steel 135° Mini Small Bits Print Circuit Board Drilling Tool for CNC Engraving Precision Machinery - 20 Pack
- PACKING LIST: 20 packs of micro drill bits in 1.75mm/0.0689inch cutting diameter, 3.175mm (1/8inch) shank diameter, 12mm/0.47 inch flute length, 38mm/1.5 inch overall length, 135° point angle, suitable for processing small components. NOTE: color is random
- FEATURE: Our carbide twist drills combine 92% Tungsten Carbide / 8% Cobalt for extreme hardness (HRA 89-95), wear resistance (3x HSS life), and heat stability (800°C+). Featuring razor-sharp cutting edges and precise milling grooves, ensuring maximum productivity and durability in demanding applications.
- APPLICATION: With their high hardness, wear resistance, and precision machining capabilities, cemented carbide mini drill bits are widely used in high-precision applications, including electronics manufacturing (PCB micro-hole drilling), precision machinery (micro-component processing, micro-hole machining)
- INSTRUCTION: Make sure the workpiece is firmly clamped (such as using a vise or fixture) to prevent it from sliding during drilling. Position the twist drill at 90° to the workpiece. For thick materials, drill in multiple passes to prevent overheating or breakage.
- NOTE: When machining different materials, the spindle speed and feed rate vary. Generally, the harder the material, the lower the spindle speed and feed rate should be. Always use coolant in high-speed machining to protect carbide tools from heat-induced failure.
| Brand: | PATIKIL |
|---|---|
| Manufacturer: | PATIKIL |
| Part Number: | N3W78CB |
| Material Type: | Tungsten Carbide |
| Isin: | IB2DF1RYFZ02 |
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√FEATURE:
Micro drill bit crafted from ultra-hard 92% Tungsten Carbide (WC) with 8% Cobalt (Co) binder
Exceptional Hardness (HRA 89-95) – 3× longer life than HSS
Unmatched Wear Resistance - for stainless steel & hardened alloys
High-Temperature Stability - Maintains cutting edge at 800°C+
Precision-Ground Flutes - Optimized chip evacuation & reduced heat buildup
An uncoated (Bright) surface - reduces friction resistance during cutting
The 135-degree tip angle - provides excellent processing stability
√APPLICATION:
Tungsten carbide twist drill bits (1.75mm) excel in precision applications: PCB micro-drilling (0.15-3mm holes), device components, aerospace turbine cooling holes, maintaining micron-level accuracy in demanding industrial environments.
The drills are suitable for high-hardness metals, such as steel, alloy cast iron, stainless steel, iron, copper, aluminum alloy, and cast iron. They are also effective in plastics and wood.
√PACKING LIST:
-Cutting Edge Diameter: 1.75mm/0.0689inch
-Shank Diameter: 3.175mm (1/8inch) shank diameter
-Flute Length: 12mm/0.47inch
-Total Length: 38mm/1.5 inch
-Package Content: 20pcs x Mini Drill
√NOTE:
When machining different materials, the spindle speed and feed rate vary.
Generally, the harder the material, the lower the spindle speed and feed rate need to be.
Position the twist drill at 90° to the workpiece.
For thick materials, drill in multiple passes to prevent overheating or breakage.
Use cutting fluid to improve efficiency, extend tool life, and reduce material damage.
For specific speed and feed rates recommended for common materials, please refer to the details provided on the product page.
Micro drill bit crafted from ultra-hard 92% Tungsten Carbide (WC) with 8% Cobalt (Co) binder
Exceptional Hardness (HRA 89-95) – 3× longer life than HSS
Unmatched Wear Resistance - for stainless steel & hardened alloys
High-Temperature Stability - Maintains cutting edge at 800°C+
Precision-Ground Flutes - Optimized chip evacuation & reduced heat buildup
An uncoated (Bright) surface - reduces friction resistance during cutting
The 135-degree tip angle - provides excellent processing stability
√APPLICATION:
Tungsten carbide twist drill bits (1.75mm) excel in precision applications: PCB micro-drilling (0.15-3mm holes), device components, aerospace turbine cooling holes, maintaining micron-level accuracy in demanding industrial environments.
The drills are suitable for high-hardness metals, such as steel, alloy cast iron, stainless steel, iron, copper, aluminum alloy, and cast iron. They are also effective in plastics and wood.
√PACKING LIST:
-Cutting Edge Diameter: 1.75mm/0.0689inch
-Shank Diameter: 3.175mm (1/8inch) shank diameter
-Flute Length: 12mm/0.47inch
-Total Length: 38mm/1.5 inch
-Package Content: 20pcs x Mini Drill
√NOTE:
When machining different materials, the spindle speed and feed rate vary.
Generally, the harder the material, the lower the spindle speed and feed rate need to be.
Position the twist drill at 90° to the workpiece.
For thick materials, drill in multiple passes to prevent overheating or breakage.
Use cutting fluid to improve efficiency, extend tool life, and reduce material damage.
For specific speed and feed rates recommended for common materials, please refer to the details provided on the product page.
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
Products may ship from:
- Our U.S. warehouses, or
- Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).
Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
| Shipping Method | Estimated Delivery | Cost |
|---|---|---|
| Free Shipping (US) | 5–10 business days | Free, available on eligible items |
| Standard Shipping (US to US by Item) | 5–10 business days | $6.50 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
| Extended Delivery (Ships from Overseas Warehouse) | 10–15 business days | $14.50 for the first item, $4.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
Tracking & Notifications
Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.
You can track your shipment anytime using the Track Your Order page on our website.
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If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
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Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
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Email: support@ibspot.com
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Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
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The item must be unused, in the same condition as received, and in its original packaging.
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A tracking number must be provided to confirm the return shipment.
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Perishable goods (for example, food, flowers, newspapers, magazines)
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Some health and personal care items
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Partial refunds may be granted in specific situations, such as:
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Books with obvious signs of use
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Opened CDs, DVDs, software, or vinyl records
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Items not in their original condition, damaged, or missing parts not due to our error
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Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We will provide a free return shipping label.
If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
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In-store returns are refunded to the original form of payment or issued as a gift card.
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Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
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5–7 business days for the return to reach our Returns Center.
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An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
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Product Claims
Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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