8-40 NS HSS Second Tap Spring Wshr 1/2 unique designed oval shaped shank

unique designed oval shaped shank handle bar gives extra strength and durability to the tool4768n 1/2"dr hinge bar 28x380mm

Coating Type: Plated

Aluminum Titanium Nitride (AlTiN) The most abrasion resistant and hardest coating

Sharp corners transfer more torque to the screw and reduce stripping

8-40 NS HSS Second Tap Spring Wshr 1/2 unique designed oval shaped shankVisus 8 40 Ns Hss Second Tap For producing precision threads by hand tapping, ideal for through holes, General purpose use Suitable for materials up to 1000N mm2 Through & blind holes Suitable for both hand and machine operations Threads per inch 10 Overall length 112mm Cutting length 37mm Drill diameter 16. 25mm