Three Stage Right Hand Imperial HSS Tap 3/8-16 BSW Thread Insize Small Hole Digital Bore Gauge 0.4-0.7" Range Series 2123-07A this protractor provides consistent angle

this protractor provides consistent angle measurement and clear readability

the 21 x 25mm Annular Cutter - HSS is your go-to solution

Knurled body that provides superior grip

Insize 5–150 mm / 0

Three Stage Right Hand Imperial HSS Tap 3/8-16 BSW Thread Insize Small Hole Digital Bore Gauge 0.4-0.7" Range Series 2123-07A this protractor provides consistent anglePlease note this is a 3 8 16 BSW 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