The Mechanic 900M-T-K (BW Series) is a high-performance soldering iron tip designed for precision electronics repair. Known for its "K-type" (knife-edge) geometry and "Black Diamond" (BW) coating, it is a staple for technicians performing microsoldering, SMD rework, and bridge clearing. Pro Tip: To maximize the life of your BW series tip, avoid using high-acidity flux and never file the tip. Filing removes the protective plating and destroys the thermal properties instantly. Initial Tinning: When heating the tip for the first time, apply solder immediately as it reaches melting temperature to prevent "instant oxidation." Temperature Control: Ideally, operate between $350^\circ\text{C}$ and $380^\circ\text{C}$. Continuous use at $450^\circ\text{C}+$ will accelerate the degradation of the black coating. Cleaning: Use brass wool or a damp (not soaking) cellulose sponge. Storage: Always leave a generous "blob" of solder on the tip before turning off the station to create an airtight seal against oxygen.Overview
Specifications
Parameter
Specification
Inner Diameter
$\approx 4.0\text{ mm}$
Outer Diameter
$\approx 6.5\text{ mm}$
Total Length
$\approx 43\text{ mm}$
Knife Edge Length
$\approx 15\text{ mm}$
Effective Temp Range
$200^\circ\text{C}$ to $480^\circ\text{C}$
Heat Conductivity
High (Oxygen-free copper core)
Life Span
Up to 30,000 solder joints (with proper maintenance)
Product Overview: Mechanic 900M-T-K BW Series
Feature
Details
Brand
Mechanic
Series
BW (Black Diamond / Professional Grade)
Model
900M-T-K
Tip Shape
K-Type (Knife Shape)
Material
High-grade Oxygen-free Copper (Core) + Multilayer Plating
Coating
Anti-corrosion, high-temperature resistant "Black" coating
Compatibility
Fits 936, 937, 938, 969 stations (900M Series handles)
Application
SMD Rework, Bridge Removal, Drag Soldering, Logic Board Repair
Maintenance & Usage Tips



| Weight |
0.05 kg |
|---|

Customer Reviews
No reviews yet
Be the first to review this product.