Drillco 20A164CB 1″-8 HSS Bottoming Tap – 2000 Series is engineered for precision threading in blind holes where maximum thread depth is required. This bottoming tap, part of the Straight Flute “Hand Taps” product line, features a short chamfer lead designed to thread close to the bottom of holes. Made from general-purpose high-speed steel (HSS) with a black oxide finish, it offers enhanced wear resistance and durability for both hand and machine tapping applications across a wide range of materials.
Features:
- Made from general-purpose high-speed steel (HSS) for strength and durability
- Straight flute design suitable for hand and machine tapping
- Bottoming chamfer with 1–2 thread lead for threading near hole bottoms
- Black oxide surface treatment improves tool life and reduces friction
- 118° conventional point for rapid penetration
- Jobber length ideal for most standard applications
- Made in the USA
Benefits:
- Ideal for blind holes requiring full thread depth
- Reliable performance across a variety of low- and medium-strength materials
- Durable and long-lasting tool for industrial and workshop use
- Provides smooth, accurate threading with minimal effort
Technical Specifications:
- Model: 20A164CB
- Thread Size: 1″-8 UNC
- Type: HSS Bottoming Tap
- Material: High-Speed Steel (HSS)
- Flute Type: Straight Flute
- Shank Type: Round
- Tip Style: Bottoming Chamfer
- Surface Treatment: Black Oxide
- Point Angle: 118° Conventional
- Series: 2000
