Three Stage Right Hand Imperial HSS Tap 5/16x22 BSF Thread Insize Digital Caliper 0-300mm / 0-12" Range Series 1136-301 M4 - 6mm - 50

M4 - 6mm - 50 PCS

3MT TO 3MT EXTENSION SOCKET

Size : 3/4"-14 BPST

Live Centre Extended Nose MT5 M16 Drawbar Medium Duty

Shank Size: MT2 Shank

Three Stage Right Hand Imperial HSS Tap 5/16x22 BSF Thread Insize Digital Caliper 0-300mm / 0-12" Range Series 1136-301 M4 - 6mm - 50Please 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