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3/8 Tungsten Solid Carbide Drill Bit for Hardened Steel Stainless Steel Hot Working Steel Metal CNC Carbide Twist Drill Bits 135° Point Angle
✅ In stock
F
Grade
Analysis Confidence
59%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 26, 2026 1:56 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
1.5/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
yftool
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓The Enhanced Tip for Demanding Materials：135° point angle is standard for carbide drills bit machining stainless steel, hot working steel ＜ HRC40 and other high hardness steels. This obtuse geometry strengthens the cutting tip, reduces cutting forces, and minimizes carbide drill bit "slioping or walkino" for improved accuracy and drill life
✓Tialsi Coating For Stainless & Hard Steels：TiAlSi coating represents a significant advancement over conventional AlTiN. It features a substantially higher coating hardness of 3,200 HV compared to AlTiN's 2,600 HV, and an elevated oxidation resistance of 1,300°C. This combination, along with its high coefficient of friction, is engineered to withstand the extreme heat and abrasion encountered when drilling stainless steels and high-hardness steel materials
✓YFTOOL 2pcs 3/16 Carbide Drill Bit Set | Precision For Delicate Work：this solid carbide drill bit includes, 3/8" engineered for fine and precise drilling. the premium carbide construction ensures exceptional rigidity, guaranteeing tight tolerances within ±0.003mm for demanding applications
✓Optimized Chip Control & Heat Reduction：the strong pumping effect created by the 30° helix angle can quickly expel long and tough chips out of the hole. this feature, combined with the short chips formed by the 135° point angle, fundamentally solves the problem of chip blockage. smooth chip evacuation removes a large amount of cutting heat, effectively controlling the workpiece temperature, and significantly reducing the work hardening phenomenon common on materials such as stainless steel and hard steel
✓0.4μm K30 Carbide：the foundation of this carbide drill is a k30 grade carbide with an ultra-fine 0.4-micron grain structure. this delivers two key benefits: extreme wear resistance for a longer tool life and superior strength/rigidity to prevent deflection and breakage, ensuring consistent precision in every cut
⚙️ Specifications
Material
Tungsten Carbide
Cutting Diameter
0.38 inches
Finish Type
TiALSi coating
Shank Type
Round Shank
Cutting Angle String
135 degrees
Brand Name
YFTOOL
Model
YF-drillsteel3/8
Unit Count
1 Count
Manufacturer
YFTOOL
Part Number
YF-drillsteel3/8
Included Components
drill bit
