Irwin 1/4"-20 NC Plug Bulk HCS Fractional Tap (1420)

The Irwin 1/4"-20 NC Plug Bulk HCS Fractional Tap (1420) is a precision hand tool engineered for creating internal threads in various materials, primarily metals. As a foundational piece of any workshop or toolbox, this tap is specifically designed for general-purpose maintenance, repair, and rethreading tasks. Its construction from High Carbon Steel ensures that it can withstand the demands of regular use, providing a clean and accurate cut every time. The plug-style tap features a chamfered tip that facilitates the initial entry into a pilot hole, making the threading process more manageable and consistent. This tap is the perfect solution for creating new threads or restoring existing ones, ensuring a secure and reliable fit for bolts and fasteners.

KEY FEATURES AND BENEFITS:

• Creates Standard 1/4"-20 NC Threads: The tap is engineered to cut the popular 1/4"-20 NC thread size, which is a common specification for many bolts and screws, making it a versatile tool for a wide range of applications.
• High Carbon Steel Construction: The High Carbon Steel material provides good wear resistance and hardness, allowing the tap to cut through a variety of materials with ease while maintaining its sharp cutting edge.
• Plug Tap Style for Versatility: The plug tap's chamfer allows it to be used in both through holes and blind holes. It is an excellent choice for a single-pass threading operation where the thread does not need to go all the way to the bottom of a blind hole.
• Effortless Chip Removal: The 4 straight flutes efficiently guide chips away from the cutting threads, preventing clogging and ensuring a smoother cutting action for a cleaner final thread.
• Hand Use for Precision: This tap is specifically designed for use with a tap handle, which gives the user direct control over the cutting process, allowing for greater precision and reducing the risk of a broken tap.

SPECIFICATIONS:

• Thread Size: 1/4"-20 NC
• Thread Type: NC (National Coarse)
• Material: High Carbon Steel (HCS)
• Flutes: 4 Straight Flutes
• Cutting Direction: Right-Hand
• Tap Style: Plug Tap

HOW TO USE:

1. Prepare the Pilot Hole: Ensure you have drilled a pilot hole of the correct size using a #7 drill bit. The hole should be clean of any debris or chips.
2. Mount the Tap: Secure the Irwin 1/4"-20 NC tap firmly into a tap wrench or handle. Make sure the tap is centered and held tightly.
3. Apply Lubricant: Apply a few drops of cutting oil to the tap and the hole. This will reduce friction, extend the life of the tap, and help create a cleaner thread.
4. Begin Threading: Place the tip of the tap into the pilot hole, making sure it is perfectly vertical. Apply downward pressure while slowly turning the tap clockwise.
5. Remove Chips: After every half to a full turn clockwise, reverse the tap a quarter turn counter-clockwise to break the chips and prevent clogging.
6. Complete the Thread: Continue this process until the tap has created the desired thread depth, then carefully unscrew it from the hole.

BENEFITS OF USING IRWIN 1/4"-20 NC PLUG BULK HCS FRACTIONAL TAP (1420):

• Allows for the repair of stripped or damaged internal threads.
• Creates new internal threads for various fastening applications.
• Provides a cost-effective solution for threading needs.
• Enhances the precision and security of threaded connections.
• Suitable for both professional tradesmen and DIY enthusiasts.

FEATURES:

• Standard right-hand cutting direction for conventional threading.
• Bulk packaging for easier inventory management.
• Chamfered tip for smooth initial engagement in pilot holes.
• Designed for manual threading using a tap handle.
• Produces a Class 2B thread fit suitable for general-purpose applications.
• Black oxide finish helps resist corrosion.