Drilling & Via Formation
Two-Head CNC Drilling Machine (2-Axis)
Engineer-configured drilling & via formation equipment for consistent results across rigid, multilayer, and HDI boards.
View detailsThe ST-LD Series Drill Bit is a replacement part for PCB drilling machines. It belongs to our Drill & Router Bits range and is supplied new, tested and ready to install, so you can restore the machine to its original accuracy without waiting for an OEM back-order.
What the ST-LD Series Drill Bit Does
Drill and router bits are the cutting tools of the PCB line. Geometry, coating and shank tolerance decide hole wall quality, burr level and how many hits each tool can make.
Product Details
PCB drill bits with high quality and long life with manufacturing price for your PCB fabrication.
Ordering & Delivery
- Trade Term: FOB Shenzhen USD by T/T in advance.
- Discount is allowed against your quantity.
- OED/OEM is accepted.
- Delivery will be carried out by Express or your requirement.
- Lead Time: 2~7 days after payment.
Frequently Asked Questions
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: If machines, it will be about 10~15 working days. If spares, it will be about 2~3 working days after payment.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
When to Replace It
- Rough hole walls or nail-heading
- Burrs on the exit side
- Rising breakage rate
- Hit count well below the usual tool life
How to Confirm Compatibility
Before ordering, please check or send us:
- Diameter, flute length and shank size
- Material stack (FR-4, high-Tg, aluminium, etc.)
- Coating (e.g. TAC / DLC) where required
- Re-pointing and tool-life settings
Looking for complete machines? See our Drilling & Via Formation and Profiling & Routing.
Technical Questions
Is the ST-LD Series Drill Bit new or refurbished?
The item is supplied in new condition. Every part is inspected before it is packed.
Which machines is the ST-LD Series Drill Bit compatible with?
It is designed for PCB drilling machines. Send us the machine model and the original part number (this item: PCB DT/LD Series Drill Bits) and we will confirm the fit before shipment.
Do you supply other spare parts for the same machine?
Yes. We supply collets, spindles and shafts, air bearings, pressure feet and brushes, cylinders, sensors, tool magazines, drill and router bits, and backup and entry boards for PCB drilling and routing machines.
When should the ST-LD Series Drill Bit be replaced?
Typical signs are: rough hole walls or nail-heading; burrs on the exit side; rising breakage rate; hit count well below the usual tool life.
Sources & References
- IPC-A-600: Acceptability of Printed Boards
- IPC-6012: Qualification and Performance Specification for Rigid Printed Boards
- Photo Chemical Machining Institute — process capability guidelines
- NIST Engineering Statistics Handbook — process tolerance and capability
Standards are referenced for context. Always confirm parameters against the current published edition and your own process validation.
