Technical Knowledge
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Read the Chips, Know the Drill: How Chip Shape Reveals What Is Really Happening Inside Your Hole
Chips are the one part of the drilling process that most operators never look at twice. They sweep them off the table, clear the flutes, and move on. That is a missed opportunity. Chips are the health report of your drilling operation. They tell you whether your paramete...Read more -
Drilling stainless steel: what you need to get right
Stainless steel is one of the most demanding materials to drill. Unlike mild steel or aluminium, it punishes poor technique and wrong tooling quickly and visibly — through broken bits, oversized holes, and rough surface finishes. This guide explains why stainless steel b...Read more -
How to Prevent Drill Bit Wandering: A Complete Guide for Precision Metal Drilling
When drilling into metal, one of the most frustrating problems is encountering a drill bit that slips or "walks" across the surface at the start. In the industry, this issue is known as drill bit wandering (or walking). Wandering prevents the creation of a perfectly conc...Read more -
Why Cobalt Drills Are Irreplaceable in High-Heat Stainless Steel Machining
In the world of industrial metalworking, stainless steel is known for its extreme "toughness." Whether you are working with 304, 316, or specialized 400-series alloys, these materials create a major challenge for standard cutting tools: intense, localized heat. At Jiache...Read more -
How to Determine the Optimal Drilling Speed (RPM) for HSS Drill Bits: A Professional Guide
In the world of metalworking, precision is everything. One of the most common questions from distributors and end-users is: "What is the correct RPM for my drill bit?" Setting the right speed is the difference between a clean hole and a ruined tool. If the speed is too h...Read more -
Is Cobalt Necessary for Stainless Steel? A China Top Metal Cobalt Drill Bit Exporter Explains Material Compatibility
The industrial processing of stainless steel presents a formidable "performance wall" for many metalworkers and procurement professionals. While stainless steel offers exceptional corrosion resistance and aesthetic appeal, its inherent mechanical properties make it notor...Read more -
Addressing Deep-Hole Challenges: Solutions from a High Precision Extra Long Drill Bits Supplier
The industrial landscape continues to demand higher performance from metalworking tools as projects in aerospace, heavy machinery, and mold manufacturing become more complex. One of the most significant technical hurdles in these sectors involves deep-hole drilling, wher...Read more -
Full Ground vs. Roll Forged Drills: What’s the Difference and Choosing Right
When browsing through catalogs of High-Speed Steel (HSS) drill bits, you will frequently encounter two main descriptions regarding their manufacturing process: "Roll Forged(RF)" and "Full Ground (FG)". At Jiacheng Tools, we believe an informed customer is o...Read more -
Why Drilled Holes Are Always Oversized? Understanding Drill Bit “Runout”
Hello everyone! If you often do hole machining projects, do you often have questions like: Why my 10mm drill bit produce a 10.1mm hole? or Why my drill bits break so easily? In most situations, the problem isn't insufficient drill bit hardness, but an invisible killer- r...Read more