Drillco 30MM-3.50 4FL Bottom Tap (28A300AB)
Drillco 28A300AB 30MM-3.50 4FL Bottom Tap is a reliable straight flute hand tap widely used in general machine tapping operations. Known for its versatility, this tap is suitable for both production and hand tapping in a broad range of material groups. Constructed from general purpose High-Speed Steel (HSS), it offers durability and consistent performance. The 118° conventional point design enables rapid penetration, making it efficient for threading tasks. A black oxide surface treatment enhances tool life by improving corrosion resistance and reducing wear. Its jobber length is ideal for most tapping applications, providing an optimal balance between reach and strength. Proudly made in the USA, this bottom tap meets high-quality standards for professional use.
Made from general purpose High-Speed Steel (HSS) for reliable durability
118° conventional point design for fast and efficient penetration
Black oxide surface treatment enhances corrosion resistance and tool life
Jobber length suitable for a wide range of tapping applications
Square shank compatible with standard-sized tap wrenches
Efficient threading with rapid penetration for increased productivity
Extended tool life thanks to black oxide surface protection
Versatile jobber length adapts to most common tapping needs
Easy to handle with standard tap wrenches for user convenience
Technical Specifications:
Type: Bottom Tap
Geometry: Straight Flute
Material: General Purpose High-Speed Steel (HSS)
Point Design: 118° Conventional Point
Surface Treatment: Black Oxide
Length: Jobber Length
Country of Origin: USA
Product identification
- Brand: Drillco
- Model / MPN: 28A300AB

