Dormer E5391/4 Series E539 HSS BSF Spiral Point Machine Tap, Bright Finish, 1/4"-26 x 66mm

• Steam Tempered finish - prevents work piece material from sticking to the cutting edge
• Premium HSS material - high speed steel provides superior performance and extend tool life
• Spiral point - designed for efficient threading of through holes
• ISO Standard - manufactured conforming to the international standardisation organisation
• Versatile product - first choice for tapping steels and stainless steels, also suitable for aluminium and cast irons

Dormer's E539 machine tap is designed to produce British Standard Fine threads in a number of materials including aluminium, steels and stainless steels. They are manufactured from High Speed steel so you can be confident of a high performance level and good tool life and they also conform to the International Standards Organization. E539 taps have a steam tempered finish to prevent workpiece material from sticking to the tool to make sure they produce accurate, clean threads every time. The taps are designed with a spiral point so are ideal for threading holes which go all the way through the workpiece.