M4x0.7 HSS L/H Taper Tap

Goliath M4X0.7 HSS L/H Taper Tap For producing precision Left Hand threads by hand tapping, for starting threads - either second or bottoming taps should used after to achieve desire thread depth.
General purpose use
Suitable for materials up to 1000N/mm2
Through & blind holes
Suitable for both hand and machine operations
Drill diameter 3.3mm