Three Stage Right Hand Imperial HSS Tap 3/8-16 BSW Thread Insize GO Thread Ring Gauge 1/4"-20 UNC Series - 4633-1B1 Ideal for Slab-On-Ground Construction: Perfectly

Ideal for Slab-On-Ground Construction: Perfectly suited for slab-on-ground installations where easy access and alignment are critical

Part No: 1161-150A

Part Number: 2871-10

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it is ideal for machining

Three Stage Right Hand Imperial HSS Tap 3/8-16 BSW Thread Insize GO Thread Ring Gauge 1/4"-20 UNC Series - 4633-1B1 Ideal for Slab-On-Ground Construction: PerfectlyPlease 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