Drillco 20MM-2.50 4FL Bottom Tap (28A200AB)
Drillco 28A200AB 20MM-2.50 4FL Bottom Tap is a straight flute “Hand Tap,” widely used in general machine tapping operations. This durable bottom tap is ideal for production and hand tapping in a variety of materials, designed specifically to thread to the bottom of blind holes. Constructed from premium grade high-speed steel (HSS) for extended tool life, it features a bright finish to enhance lubricity. The left-handed teeth rotate counterclockwise to create left-handed threads. Equipped with a square shank compatible with standard tap wrenches. Made in the USA.
20MM-2.50 4-flute bottom tap
Straight flute design for versatile application
Ideal for threading bottom of blind holes
Available in taper, plug, and bottoming geometries
Bright finish for improved lubricity
Left-handed teeth for counterclockwise threading
Square shank for use with standard tap wrenches
Ensures full threading to the bottom of holes
Creates precise left-handed threads for specialized applications
Long-lasting performance with premium materials and finish
Secure handling and ease of use with square shank
Technical Specifications:
Thread Size: 20MM-2.50
Type: 4-Flute Bottom Tap
Geometry: Bottoming
Material: Premium Grade High-Speed Steel (HSS)
Finish: Bright finish for lubricity
Thread Direction: Left hand (counterclockwise)
Shank: Square shank
Application: Production and hand tapping of through or blind holes
Product identification
- Brand: Drillco
- Model / MPN: 28A200AB
