Item Type: Tapping Machine Chollet Model: GT24-ISO-M14 Material: High Speed Steel M14 Suitable Tap Size: Approx. 11.2 x 9mm / 0.44 x 0.35in(shank diameter x square) Uses: Widely used in tapping machines, drilling machines, milling machines, boring machines, electric tools, pneumatic tools and other equipment with reversible spindles. Package List 1 x Tapping Machine Chollet 1Widely used in tapping machines, drilling machines, milling machines, boring machines, electric tools, pneumatic tools and other equipment with reversible spindles. 2Installation and disassembly of tapping chucks, taps have quickchange devices, saving time and effort, and simple operation. 3Can safe and fast replacement, tapping chuck can be connected to drill chuck extension. 4This high speed steel torsiontype tapping chuck adapter can prevent the tap from breaking. 5The tapping chuck adapter has good clamping strength, accuracy and long service life.