1/4-28UNF | American Thread Ring Gauge | 4121-1B2Insize American Thread Ring Gauge Wallers Industrial Hardware is your local authorised distributor for the complete range of INSIZE Measuring Equipment products. Every INSIZE product comes with a 12 month professional warranty which is honored directly through our store for accurate and hassle free measuring for the professional and novice alike. Specifications : UNF American Go Class 2A Standard ANSI B1. 2 Reading: 1 4 28UNF Length: 55mm Width: 53mm

this kit ensures professional-grade results in a variety of applications

Part No: 5510952

and tool durability

The Insize Digital Caliper 0–150 mm is a precise and user-friendly measuring instrument designed for reliable performance in a variety of engineering and workshop applications

making it ideal for both workshop and production drilling

Ratchet Stop: Ensures consistent measuring pressure for accurate

and Solid Carbide threadmills designed to optimize productivity and precision

Why Choose the 3mm-25mm Weldon Shank Countersink HSS

accurate holes with minimal burrs and debris

burr-free holes with minimal effort

ensuring correct fit and optimal performance

Affordable Thread Repair: Provides a cost-effective solution for repairing damaged threads