Drillco® Spiral Flute Super High Performance BT Tap, High Speed Steel, 1"-8 Thread, 5-1/8" L Pipe Die For Die Heads Slotted shim is the best

Slotted shim is the best way to solve alignment and leveling problems

The 7/16" hex fits both 3-jawed chucks with 1/2" drill capacity and larger

Allows for exact placement of point

Pump thermal protection

Drillco® Spiral Flute Super High Performance BT Tap, High Speed Steel, 1"-8 Thread, 5-1/8" L Pipe Die For Die Heads Slotted shim is the bestThese taps are designed for machine tapping in a wide range of material groups including difficult to machine materials such as stainless steel The Nitro multi application tap improves thread quality and aids in chip evacuation eliminating bird nesting Specifications Material High Speed Steel Thread Size 1" 8 Overall Length 5 1 8" Finish Bright Country Of Origin United States