Irwin 6-48 NS HCS Bottom Machine Screw Tap - Bulk (1221)

The Irwin 6-48 NS HCS Bottom Machine Screw Tap - Bulk (1221) is a high-quality, professional-grade hand tool engineered for precision threading. This tap is constructed from High Carbon Steel (HCS), making it suitable for general-purpose hand threading in a variety of materials. It is a bottoming tap, which means it has a short, 1 to 1.5 thread chamfer at the tip. This specialized design allows it to cut threads all the way to the bottom of a blind hole, which is a hole that doesn't go all the way through the material.

KEY FEATURES AND BENEFITS:

• Precision Threading: Creates a precise #6-48 NS thread, ideal for applications requiring a non-standard thread size. The tap produces a Class 2B thread, providing a common tolerance for general-purpose fasteners.
• Bottoming Design: The short chamfer at the tap's tip allows it to cut threads to the very bottom of a blind hole. This is a crucial feature for many repair and manufacturing applications where full-depth threading is required.
• High-Carbon Steel Construction: Made from High Carbon Steel (HCS), this tap is suitable for general-purpose hand threading applications in various materials. The material is heat-treated to provide resistance to shock, ensuring longevity and consistent performance.
• Efficient Operation: Features straight flutes that are designed to remove chips rapidly from the hole during the threading process. This ensures a cleaner cut, reduces clogging, and improves overall efficiency.

SPECIFICATIONS:

• Tap Type: Bottoming Tap
• Thread Size: #6-48 NS
• Material: High Carbon Steel (HCS)
• Thread Class: 2B
• Cutting Direction: Right-hand cut
• Number of Flutes: 3

HOW TO USE:

1. Prepare the Hole: Use a 0.12-inch diameter drill bit to create a pilot hole in the material. Ensure the hole is clean and free of any debris.
2. Apply Cutting Fluid: Apply a small amount of cutting oil to the tap and the hole. This will reduce friction, cool the tool, and help create a smoother thread.
3. Start Threading: Insert the tap into the hole, ensuring it is perpendicular to the material's surface. Apply downward pressure and turn the tap clockwise using a tap wrench.
4. Clear Chips: After a half-turn or one full turn, reverse the tap to break and clear the chips from the flutes. This prevents the tap from binding and ensures a clean thread.
5. Continue Tapping: Continue turning the tap clockwise, periodically reversing it to clear chips, until the desired thread depth is reached.

BENEFITS OF USING IRWIN 6-48 NS HCS BOTTOM MACHINE SCREW TAP - BULK (1221):

• Allows you to create threads to the base of blind holes, ensuring fasteners sit flush.
• The high-carbon steel construction provides a balance of hardness and strength for consistent performance.
• Designed for hand use, giving you precise control over the threading process.
• Creates a Class 2B thread, a standard tolerance that ensures broad compatibility with fasteners.

FEATURES:

• Right-hand cut for standard turning direction.
• Three straight flutes for effective chip clearance.
• Designed for hand threading applications, not suitable for power tools.
• Engineered to cut threads for #6-48 NS sized fasteners.
• Short chamfered tip to reach the bottom of a hole.
• Made from High Carbon Steel for reliability and extended life.