Three Stage Right Hand Imperial HSS Tap 5/16x22 BSF Thread Insize Digital Caliper 0-300mm / 0-12" Range Series 1136-301 Shank Size: MT2 Shank

Shank Size: MT2 Shank

Finish: Satin chrome finish

High accuracy of 0

M4 - 6mm - 50 PCS

Hardened shank and contact tip for durability and long service life

Three Stage Right Hand Imperial HSS Tap 5/16x22 BSF Thread Insize Digital Caliper 0-300mm / 0-12" Range Series 1136-301 Shank Size: MT2 ShankPlease note this is a 5 16 22 BSF thread. This form of tap is ideal for tougher materials as the thread is formed in three stages as opposed to NON serial taps which form the thread in one pass. Specifications Material: HSS (High Speed Steel) BOTTOM TAPS have a chamfer (lead) of 12 threads, the angle of the lead being around 18 degrees per side. They are used to produce threads close to the bottom of blind holes. SECOND TAPS have a lead of 3 5 threads