Crafted From Durable Tool Steel Features A Detachable Spinning Cap For Holding In A 1/2" Capacity Drill Chuck On A Mill Or A Lathe Machine Innovative Design Provides Better Control Over Concentric Runout In Manual And Machine Tapping Operations Jaws Made Of Hardened Alloy Steel Grade EN31 Ensure Durability And Precision In Threading Tasks Medium Size Offers A Tap Holding Capacity Ranging From 5.0 To 8.0 mm, Providing Versatility And Reliability For Various Threading Needs Crafted From Durable Tool Steel, This Guiding Tap Wrench Features A Detachable Spinning Cap, Allowing The Tail Of The Cap To Be Held In A 1/2" Capacity Drill Chuck On A Mill Or A Lathe Machine. This Innovative Design Provides Better Control Over Concentric Runout In Both Manual And Machine Tapping Operations. The Jaws, Made Of Hardened Alloy Steel Grade EN31, Ensure Durability And Precision In Threading Tasks. Specifically Used For Threading Drilled Holes At Machine Locations Without Moving The Workpiece, This Tapping Accessory Is Ideal For Drill Presses And Lathes. It Guarantees An Identical Center-line Alignment Between The Tap And The Drilled Hole, Facilitating Accurate Threading Operations. The Slip-proof Knurled Grip Enables Easy Rotation Of The Cap To Tighten The Desired Taps Securely. Available Individually Or In Sets Of Three, This Medium Size Offers A Tap Holding Capacity Ranging From 5.0 To 8.0 mm, Providing Versatility And Reliability For Various Threading Needs.