1/2" UNF HSS L/H Taper Tap 6481230 designed for shallow cuts such

designed for shallow cuts such as slotting screw and bolt heads or machine slots into work pieces M-2 Grade High Speed Steel

Thread and flute configuration designed for high tensile materials such as Tool Steels

Flute length 10mm

1/2 UNF Imperial 20 Piece Zinc Plated hex Bolt & Set Screw selection pack

1/2" UNF HSS L/H Taper Tap 6481230 designed for shallow cuts suchFor 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 Threads per inch 20 Overall length 89mm Cutting length 29mm Drill diameter 11. 5mm