Description
Irwin 6-32 NC Taper Bottom Bulk HCS Machine Screw Tap (1218ZR) is a specialized threading tool engineered for precision and reliability. Designed for manual application, this tap is crafted from high carbon steel, making it suitable for a wide range of materials including mild steel, brass, and aluminum. Its unique bottoming design, characterized by a short chamfer, allows for the creation of threads all the way to the very end of a blind hole, a task where other taps would fall short. This tap is an indispensable item for professionals and hobbyists engaged in repair, maintenance, and rethreading tasks, ensuring a clean and accurate 6-32 NC thread every time.
KEY FEATURES AND BENEFITS:
- Precision Threading: Creates accurate 6-32 NC threads, standard for many machine screw applications, ensuring a proper fastener fit.
- Bottoming Design: Short chamfer allows threading close to the bottom of blind holes, maximizing thread engagement.
- High Carbon Steel (HCS) Construction: Provides hardness and wear resistance for cutting threads in various metals and plastics.
- Versatile Application: Suitable for mild steel, brass, aluminum, and more, making it ideal for diverse projects.
- Right-Hand Cut: Ensures easy, intuitive clockwise operation.
SPECIFICATIONS:
- Thread Size: 6-32 NC (National Coarse)
- Tap Style: Bottoming
- Material: High Carbon Steel (HCS)
- Hand of Cut: Right Hand Cut
- Thread Class: 2B
HOW TO USE:
- Preparation: Ensure the hole is correctly sized for a 6-32 NC tap, pre-tapped with a taper or plug tap to start threads.
- Lubrication: Apply cutting oil to the tap and workpiece to reduce friction and heat, improving thread quality.
- Insertion: Insert the tap straight into the hole, using a tap handle to maintain alignment.
- Tapping: Turn clockwise a half to full turn, then reverse a quarter turn to break chips; repeat until desired depth is reached.
- Finishing: Carefully remove the tap by reversing it and clean metal chips from the hole.
BENEFITS OF USING IRWIN 6-32 NC TAPER BOTTOM BULK HCS MACHINE SCREW TAP (1218ZR):
- Enables threading to the bottom of blind holes where other taps cannot reach.
- Durable high carbon steel construction ensures long life and reliable performance.
- Produces precise 6-32 NC threads for secure, professional fastener fit.
- Bulk packaging offers cost-effective supply for frequent maintenance and repair.
FEATURES:
- Designed for hand use.
- Produces standard Class 2B threads.
- Bright finish resists rust.
- Optimized for rethreading and maintenance.
- Right-hand cut for easy clockwise operation.
- Suitable for soft metals and plastics.
- Specifically used to finish threads in blind holes.





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