Guhring 9008030020000 Spiral Point Tap M2x0.4 Cobalt

Product Description

The GUHRING 9008030020000 is a spiral point tap designed for through-hole threading in metric applications. Built from cobalt high-speed steel with a bright finish, it cuts M2 x 0.40 mm threads to a 6H class of fit. The plug chamfer and three-flute geometry push chips forward through the hole, keeping the cutting zone clear and reducing the risk of tap breakage. With an overall length of 45 mm and a 2.80 mm shank diameter, this tap is suited for precision threading in small-diameter applications. It is installed by machinists, tool and die makers, and maintenance technicians working with metric fastener specifications.

This tap is intended for right-hand, through-hole threading in steel workpieces. The D2/D3 thread limit makes it appropriate for producing 6H tolerance threads commonly required in metric mechanical assemblies. The plug chamfer style requires a starter hole that passes fully through the material, allowing chips to eject out the back. Series 803 designates this as part of a professional-grade line optimized for threading in ferrous materials without the use of coolant-through delivery.

Key Features

• Cobalt construction provides improved heat and wear resistance compared to standard HSS taps
• Plug chamfer geometry initiates the cut progressively and is suited for through-hole applications only
• Three-flute spiral point pushes chips forward, reducing chip packing in deep holes
• 6H class of fit meets standard metric tolerance requirements for general mechanical assembly
• D2/D3 thread limit supports accurate pitch diameter control during production threading
• Bright finish with no coating allows direct inspection of tool condition between uses

Compatibility

Designed for through-hole threading of M2 x 0.40 metric threads in steel workpieces where a 6H class of fit is specified. Not recommended for blind-hole applications.

Installation Notes

This tap is installed by machinists or maintenance technicians using a standard tap wrench, tapping head, or CNC rigid tapping setup. Ensure the workpiece is securely fixtured and the pilot hole diameter is correct for M2 x 0.40 metric threads before starting. Apply appropriate cutting fluid for steel to extend tool life. This tap does not support coolant-through delivery, so flood or brush-applied lubrication should be used where possible.