Dormer Threading Tap, M8 Thread, Metric Standard, Machine Tap

Straight flute left-hand cut HSS machine tap bits E501

• Range of HSS machine tap bits, straight flute, left-hand cut with metric pitch.
• 6H tolerance class, a short, 2-thread input and a 7 ° cutting angle.
• Recommended for use in both through or blind holes and for depths up to 2<THspace/>times diameter.
• Surface treatment: shiny.

Standard: ISO 529

Rolled Flute Taps

• Bright finish fluteless taps; for use on copper, aluminium, magnesium, brass, zinc etc.
• Flash chrome finish fluteless taps; for use on steel up to 850N/mm² tensile strength, free matching and austenitic stainless steel
• Made to ISO529 standard for tapping blind and through holes in a wide range of ductile materials
• Smooth non-cutting action produces greater thread formed strength, higher life expectancy and increased tapping speeds especially where excessive tension occurs