BB Pro Drill for Stainless Steel External Cooling 5xD Hole Making Efficiency Bit

BB SUS Drill

Stainless Steel Buster

Effortless drilling suitable for 304 Stainless Steel, High Hardness Steel Bar, Thick Steel Plate, Galvanized Iron Pipe, etc.”

Multiple Options

External Cooling：Center through-hole, better cooling effect, increased service life.
Internal Cooling：Solid high-hard tungsten carbide alloy, efficient processing
Under the same parameters, compared with external cooling, internal cooling increases 30% lifespan. The double helical holes outlet reduces temperature and flushes out chips, enhancing drilling stability and accelerating drilling efficiency.

The coolant for internal cooling drills acts directly on the cutting edge, rapidly removing heat and chips, making it suitable for continuous high-intensity machining.

Cut Through Iron Like Butter

Multi-Position Measured Efficient Punching
External Cooling
Internal Cooling

Chamfered Round Shank

Clamping Force,A Stable Output

Carbide Material

High-Quality Fine-Grain
Carbide Material
Wear-Resistant and Durable，high hardness

Double Helical Groove Chip Removal

150 Degree Drill Tip
Chip-Free Drilling for Smoother Processing

Applicable Equipment

Applicable Equipment
CNC Milling Machine
Machining Center
CNC Engraving Machine
Drilling Machine