Spiral flute tap details
Drillco 5/8-11 Spiral Flute BT Tap (20PF140C)
Drillco 20PF140C 5/8-11 Spiral Flute BT Tap is a precision-engineered tool designed for efficient machine tapping in a broad range of materials—including tough, hard-to-machine metals like stainless steel. With its advanced spiral flute geometry and Nitro multi-application treatment, this bottoming tap ensures clean thread cutting, smooth chip evacuation, and extended tool life. Ideal for high-performance machining and repair tasks that demand durability and accuracy.
Spiral flute configuration enhances chip removal, especially in blind hole applications
Effective across a wide range of material groups, including stainless steel and other alloys
Constructed from high-speed steel with a Nitro treatment for added strength and wear resistance
Available in taper, plug, and bottoming geometries for full threading versatility
Bright finish improves lubricity and reduces friction during use
Standard square shank compatible with most tap wrenches and tool holders
Proudly made in the USA for dependable quality and performance
Produces high-quality threads with excellent precision and consistency
Superior chip evacuation reduces the risk of tool breakage and improves workflow efficiency
Ideal for both production environments and maintenance applications
Technical Specifications:
Thread Size: 5/8-11
Tap Type: Bottoming Tap
Flute Type: Spiral
Material: High-Speed Steel (HSS)
Treatment: Nitro
Shank Type: Square
Product identification
- Brand: Drillco
- Model / MPN: 20PF140C
