Drillco 36MM-4.00 4FL Bottom Tap (28A360AB)
Drillco 28A360AB 36MM-4.00 4FL Bottom Tap is a precision-engineered straight flute hand tap designed to create accurate threads in a wide range of materials. Known for its versatility and reliability, this bottom tap is specifically designed to cut threads to the bottom of blind holes, making it ideal for applications requiring full thread depth. Made from general purpose high-speed steel (HSS), it features a 118° conventional point that ensures rapid penetration and efficient cutting. The black oxide surface treatment enhances tool life by improving wear resistance and reducing corrosion. With a jobber length suitable for most tapping tasks, this tap is compatible with standard square shank tap wrenches and powered tapping machines. Manufactured in the USA, it delivers dependable performance in both manual and production tapping operations.
Made from general purpose high-speed steel (HSS)
118° conventional point for rapid penetration
Black oxide surface treatment for improved tool life
Jobber length suitable for most applications
Standard square shank compatible with tap wrenches and powered machines
Enables full-depth threading in blind holes
Durable and corrosion-resistant for extended use
Efficient cutting action with 118° point angle
Versatile jobber length fits a wide range of tapping needs
Technical Specifications:
Type: 4-Flute Bottom Tap
Size: 36MM x 4.00
Geometry: Bottoming
Material: General Purpose High-Speed Steel (HSS)
Finish: Black Oxide
Point Angle: 118° Conventional
Shank: Standard Square
Application: Threading blind holes with full thread depth
Country of Origin: USA
Product identification
- Brand: Drillco
- Model / MPN: 28A360AB
