Dormer E500 HSS Coarse Tap 5mm Bottoming

The Dormer E500 HSS Coarse Tap is a straight flute tap designed for precision threading operations. Made from high-speed steel (HSS), it ensures durability and long tool life even under demanding conditions. This tap is extremely versatile, capable of threading through holes or blind holes in most materials, making it a valuable tool for both professional and DIY applications.

Key Features

• Straight flute design – Can be used by hand or in a machine, providing flexibility in operation.
• High-speed steel construction – Ensures excellent wear resistance and long-lasting performance.
• For blind & through holes – Ideal for a variety of threading tasks, though straight flute taps should be used in sets for blind holes.
• ISO529 compliant – Meets industry standards for threading accuracy and performance.

Bottoming Tap Advantages

As the third tap in a set (also known as a plug tap), this 5mm coarse thread bottoming tap is essential for completing threads in blind holes. The bright surface treatment enhances corrosion resistance and maintains smooth operation.

Tapping Set Information

For best results when working with blind holes, use a full three-tap set:

• 1st tap (Taper tap) – Starts the thread.
• 2nd tap (Intermediate tap) – Widens the thread.
• 3rd tap (Bottoming tap) – Completes the thread to full depth.

Technical Specifications

• Diameter: 5.0mm
• Thread Pitch: 0.8mm (Metric Coarse)
• Tolerance: Class 2 (6H Fit)
• Chamfer No.: 1, 2, 3 (Serial No. 4 & 5)
• Flute Geometry: Straight Flutes
• Surface Treatment: Bright
• Material: High-Speed Steel (HSS)

Applications

• Metalworking – Drilling and tapping in stainless steel, alloy steel, and other metals.