Spiral flute tap details
Drillco 7/8-14 Spiral Flute BT Tap (20PF156F)
Drillco 20PF156F 7/8-14 Spiral Flute BT Tap is a high-performance tapping solution engineered for precision, durability, and versatility in demanding machining environments. Ideal for threading operations in stainless steel and other tough materials, this Nitro-treated spiral flute tap is optimized for superior chip evacuation and improved thread quality. Whether used in production or repair settings, it offers consistent performance and extended tool life.
Spiral flute geometry enhances chip flow, particularly in blind hole applications
Effective for machine tapping in a wide range of material groups, including stainless steel
Nitro treatment strengthens the tool and extends wear resistance
Bright finish reduces friction and promotes smooth cutting action
Offered in taper, plug, and bottoming tap geometries for maximum application flexibility
Standard square shank ensures compatibility with common tap holders and wrenches
Manufactured in the USA for premium quality and reliability
Delivers clean, precise threads in even the most challenging materials
Improved chip evacuation lowers the risk of jamming or tool breakage
Suitable for both high-production settings and maintenance applications
Technical Specifications:
Thread Size: 7/8-14
Tap Type: Bottoming Tap
Flute Type: Spiral
Material: High-Speed Steel (HSS)
Treatment: Nitro
Shank Type: Square
Product identification
- Brand: Drillco
- Model / MPN: 20PF156F

