Hss taper tap details
Drillco 7/8-9 HSS Taper Taps (20A156CT)
Drillco 20A156CT 7/8-9 HSS Taper Tap – 2000 Series is designed for smooth and precise thread starts in through-hole applications. This taper tap, part of the Straight Flute “Hand Taps” product line, features a long chamfer lead that ensures easy engagement and accurate threading. Suitable for both hand and machine tapping, it performs well in a broad range of materials. Made from general-purpose high-speed steel (HSS) with a black oxide finish, this tap delivers durability, corrosion resistance, and extended tool life.
Constructed from general-purpose high-speed steel (HSS)
Straight flute design supports versatile hand and machine tapping
Long taper chamfer with 7–10 thread lead for smooth starts
Black oxide coating enhances wear resistance and reduces friction
Jobber length suitable for most standard applications
Ideal for initiating threads in through-hole and general-purpose applications
Reliable performance across low- and medium-strength materials
Durable and consistent tool life reduces downtime
Easy to use for professionals and general maintenance tasks
Technical Specifications:
Thread Size: 7/8-9 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: 20A156CT





