3/16" Solid Carbide Drill Bits, 2Pcs Carbide Drill Bit Set with Blue Nano Coating, Metal Drill Bit Set for Hardened Steel Cast Iron Alloy Copper, High Precision CNC Drilling Tool Preferred Choice
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- HOYUSK Drill Bit Set Size: 3/16" drill bit (0.1875" Drill Diameter; 0.25"Shank Diameter; 0.98" Flute Length; 1.97" Overall Length)
- Precision Flat Bottom Design: These flat bottom drill bits are engineered for high-precision machining, delivering clean, flat-bottomed holes with smooth finishes. HOYUSK drill bits for hardened steel perfect for applications requiring exact depth control and minimal post-processing. Specialized in difficult drilling applications: hole enlargement, irregular/off-axis holes, angled drilling, and slope surface operations
- Blue Nano Coating & Tungsten Steel Material: Featuring a blue nano coating and crafted from ultra-fine 0.6um micro-grain tungsten steel, these small drill bits offer exceptional wear resistance, strength, and heat dissipation. Perfect for high-speed cutting and machining of hard materials up to 65 HRC, reducing tool changes and improving machine efficiency
- Sharp & Durable Cutting Edges: Fully ground cutting edges ensure sharp, precise drilling with no burrs. Our metal drill bits feature an advanced spiral flute design that ensures efficient chip removal, minimizes heat buildup, and extends the tool's lifespan
- Versatile Application: HOYUSK’s carbide drill bits suitable for drilling steel, stainless steel, aluminum, hardened materials, and more. Compatible with CNC machining centers, engraving machines, and other high-speed milling equipment. Not recommended for use with hand drills
- Secure & Stable Clamping: The straight shank design with a non-slip tail ensures a tight grip in the chuck, preventing slippage during operation. This design enhances stability and accuracy, making it ideal for high-speed machining tasks
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Select a product to estimate shipping.The machining finish of flat bottom drill bits is twice as smooth as that of normal drill bits
HOYUSK Flat Bottom Drill Bit:
Smooth, Flat Holes
Minimal Burrs, Maximum Precision
Ideal for CNC & Precision Machining
Normal Twist Drill Bit: Poor surface finish with more burrs and irregular edges, unsuitable for flat-bottom applications
Scope of use: Stainless steel, hardened steel, carbon steel, alloy steel, titanium alloy, aluminum parts, copper parts, zinc parts, acrylic, etc.
Recommended equipment: machining centers, CNC drilling and milling machines, precision carving machines, precision high stability bench drills, etc.
Available equipment: Hand operated equipment such as rocker drills, bench drills, and ordinary milling machines can be used, but attention should be paid to their use.
Key points:
1. The processed material must be firmly fixed and cannot shake.
2. When manually pressing down the drill hole - the force should be uniform, and avoid vibration or sudden blind force application.
3. When drilling through quickly, control the downward force.
Product details





| Main Specification | |
|---|---|
| Felszíni ajánlás | Fém or Rozsdamentes acél or Alumínium |
| Gyártó | HOYUSK |
| Egységszám | 2 Számolás |
| Átmérő vágása | 0,19 hüvelyk |
| A lábszár típusa | Egyenesen |
| Eszköztípus | Spirál |
| Márka | HOYUSK |
| Összetevők | Drill Bit |
| Anyag | Volfrám acél |
| Befejezési típus | Blue Nano Coating |
| Product information | |
| Csomagok száma | 2 |
| Név beállítása | 2- részes készlet |
| Technical Details | |
| Részszám | FlatDrill-65-blue-4.7625*25*50-2pcs |
| Anyagtípus | Volfrám acél |
| Furulyák száma | 2 |
| Style | |
| Befejezési típusok | Blue Nano Coating |
| Others | |
| Terméktípus | Jobber Drill Bits |











