DRILL BIT #27 Stub Cobalt Threaded - Brown Aviation Tool

Specifications

• Model Number: BAT31144
• Drill Bit Size: #27 (0.1440 inches / 3.658 mm)
• Material: Cobalt High-Speed Steel (HSCo)
• Length Type: Stub/Screw Machine Length
• Shank Type: Threaded Shank
• Point Angle: 135-degree Split Point
• Flute Design: Precision Ground Twist Flutes
• Finish: Bronze or Bright

Key Features

• Cobalt Alloy Construction: Formulated with cobalt to resist heat and abrasion, maintaining hardness at elevated temperatures.
• Stub Length Design: Features a shorter overall length, enhancing rigidity and minimizing deflection and breakage during drilling.
• Threaded Shank: Designed with a threaded base for secure, wobble-free attachment in compatible drill chucks or specialized holders.
• 135° Split Point: Self-centering point prevents bit walking on curved or uneven surfaces and reduces the need for pilot holes.
• Precision Ground Flutes: Optimized geometry for efficient chip evacuation, reducing heat buildup and promoting smoother cutting action.

Applications

• Drilling tough and abrasive materials, including stainless steel, titanium, cast iron, and high-tensile alloys.
• Precision hole drilling in sheet metal fabrication and structural components.
• Use in aerospace, automotive, and general manufacturing industries requiring durable tooling.
• Creating shallow, accurate holes where bit rigidity and stability are critical.
• Compatible with drilling machines or power drills equipped with appropriate threaded chucks or adapters.

Benefits

• Extended Tool Life: Cobalt material offers superior heat and wear resistance, allowing the bit to last longer than standard HSS bits, especially in demanding applications.
• Superior Hard Material Performance: Penetrates challenging materials with greater ease and efficiency, reducing drilling time and effort.
• Enhanced Drilling Accuracy: The stub length and 135° split point combine to deliver precise hole placement and minimal bit deflection, even in confined spaces.
• Reduced Bit Breakage: Increased rigidity from the shorter design minimizes snapping, particularly when drilling at high speeds or under stress.
• Secure and Stable Operation: The threaded shank ensures a firm grip in the chuck, preventing slippage and improving drilling stability and safety.