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RS Components Ltd- UK£14.11Visit shop Dormer Threading Tap HSS-E 1-Piece 0.7mm Pitch Metric Standard Machine Tap M4 Thread
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This DORMER E200-M4 threading tap is designed for machinists and metalworkers needing to create M4 metric threads. Its key benefit is the high-quality construction for precise thread formation. A potential caveat is the specific application for machine tapping, requiring appropriate machinery and knowledge. This one-piece HSS-E tap features a right-hand thread direction, a 0.7mm pitch, and a 6H class of fit, suitable for creating standard machine threads.
| Model Part Number | E200-M4 |
|---|---|
| Brand | DORMER |
HSS-E stands for High-Speed Steel with Cobalt. It's a type of tool steel that offers superior hardness, wear resistance, and heat tolerance compared to standard HSS, making it ideal for demanding threading applications.
The 6H class of fit refers to the tolerance of the internal thread being produced. It signifies a standard, medium tolerance suitable for general-purpose assembly where a reasonable fit is required.
While technically possible, this tap is optimized for machine tapping due to its design and intended use. Hand tapping might require different tap forms and leads for better control and chip management.
The standard pilot hole size for an M4x0.7 thread is 3.3mm. Always consult specific machining charts for precise recommendations based on material and tolerances.
Clean the tap thoroughly after each use and store it properly. Avoid using the tap for materials harder than recommended. Apply appropriate cutting fluid during use to reduce friction and heat.
The plug lead, also known as the chamfer or lead, is the tapered section at the tap's tip. A 2-3xP (pitch) lead is standard for machine tapping, allowing for easier entry and gradual thread formation.
Ensure correct pilot hole size, use adequate lubrication, reduce tapping speed, and check for chip buildup in flutes.
Verify correct tapping speed and feed rate for the material. Check if the tap is dull or damaged. Ensure proper alignment of the tap with the hole.
Use a cutting fluid. If stuck, try a slight reverse rotation to clear chips, then resume tapping. Ensure sufficient chip clearance.
Setup: This tap is designed for machine tapping. Secure the tap in a tap holder compatible with your drilling machine, milling machine, or CNC lathe. Ensure the tap is correctly aligned with the pre-drilled hole. Use appropriate speeds and feeds for the material being tapped; consult machining data handbooks for specific recommendations.
Compatibility: Compatible with standard M4 tapped holes requiring a 6H class of fit. Suitable for use with common engineering materials such as mild steel, aluminum, brass, and plastics. Requires a pre-drilled pilot hole of the correct size (typically 3.3mm for M4x0.7).
Care: Clean the tap thoroughly after each use to remove chips and cutting fluid residue. Store in a dry place to prevent corrosion. Avoid dropping or subjecting the tap to impact, which can damage the cutting edges. Periodically inspect for wear or damage.
