Emuge CU456011.5018 Spiral Flute Tap 1-8 Unc Cobalt

Product Description

The EMUGE CU456011.5018 is a spiral flute tap designed for cutting internal threads in titanium and other difficult-to-machine materials. It produces a 1-8 UNC right-hand thread and carries a 3BX class of fit, making it suitable for applications that require a tighter-than-standard tolerance. The tap is manufactured from cobalt high-speed steel and features an oxide coating that helps reduce friction and extend tool life during demanding cutting operations. With an overall length of 6.299 inches and a thread length of 1.417 inches, it fits standard tap holders used in production and maintenance machining environments. Licensed machinists and tool and die professionals are the primary users.

This tap is intended for threading titanium workpieces in both production shop and maintenance machining settings. The modified bottoming chamfer allows threading closer to the bottom of a blind hole than a standard plug or taper chamfer. The slow spiral flute geometry at a 15-degree helix angle aids chip evacuation in the short, interrupted chips characteristic of titanium cutting. It is part of the EMUGE Rekord D-Ti series, which is engineered specifically for titanium alloy applications. Coolant-through capability is not included in this tap.

Key Features

• 1-8 UNC thread size with right-hand thread direction and 3BX class of fit
• Cobalt construction for improved heat and wear resistance in hard materials
• Oxide coating reduces friction and galling during titanium threading
• Modified bottoming chamfer for threading close to the base of blind holes
• 15-degree slow spiral flute for controlled chip evacuation in titanium
• Part of the EMUGE Rekord D-Ti series, optimized for titanium alloy applications

Compatibility

Designed for threading titanium alloys as part of the EMUGE Rekord D-Ti series. Fits standard tap holders and machines configured for 1-8 UNC taps with a 0.800-inch shank diameter.

Installation Notes

This tap should be installed by a qualified machinist familiar with threading titanium. Power down and lock out the machine before changing tooling. Use a tap holder appropriate for the 0.800-inch shank and 0.600-inch square drive. Apply a cutting fluid rated for titanium to reduce heat buildup and prevent galling during the threading operation.