Hss taper tap details
Drillco 1-1/8-7 HSS Taper Taps (20A208CT)
Drillco 20A208CT 1-1/8-7 HSS Taper Tap – 2000 Series is designed for smooth thread starting in large-diameter through holes. This taper tap, part of the Straight Flute “Hand Taps” line, features a long chamfer lead that eases thread engagement and ensures precision threading. Suitable for both hand and machine tapping, it delivers reliable performance across a broad range of materials. Constructed from general-purpose high-speed steel (HSS) with a black oxide finish, it provides enhanced durability, corrosion resistance, and extended tool life.
Made from general-purpose high-speed steel (HSS)
Straight flute design for versatile hand and machine use
Taper chamfer with 7–10 thread lead for easy thread starting
Black oxide surface treatment improves wear resistance and reduces friction
Jobber length suitable for most standard tapping operations
Ideal for initiating threads in large through-hole applications
Effective in a variety of low- to medium-strength materials
Durable construction for consistent, long-lasting performance
Suitable for both production and maintenance tasks
Technical Specifications:
Thread Size: 1-1/8-7 UNC
Type: HSS Taper Tap
Material: High-Speed Steel (HSS)
Flute Type: Straight Flute
Shank Type: Round
Tip Style: Taper Chamfer
Surface Treatment: Black Oxide
Product identification
- Brand: Drillco
- Model / MPN: 20A208CT





