31mm HSS 90° Straight Shank CountersinkPrecision Cutting for Versatile Materials The 3 31mm Hi Speed Steel (HSS E) 90 Straight Shank Countersink is a high quality tool, designed for use on a wide range of materials, including steel and aluminium. A countersink creates a conical impression on the surface of the material, which allows countersunk bolts or fasteners to sit flush with the surface, providing a smooth, flat finish. Countersinks are also perfect for lightly deburring holes or

Enhance your material removal and shaping capabilities with the Best Carbide SF5NFL6 1/2" Aluminium Cut Long Series Carbide Burr – the ideal solution for high-performance cutting and deburring in aluminium and other soft metals

Complete Kit: The kit includes 5 inserts (7/16"-20 X 2D UNF)

✅ Industrial & Professional Use – Trusted for metal fabrication

heat-resistant inserts

Protects New Threads: Prevents newly tapped holes from stripping

this insert is suitable for producing medium-fine threads with high precision and reliability

even under high machining loads

The refined X and Y dimensions contribute to smooth chip evacuation

and tool & die industries

this tap allows complete thread formation near the bottom of the hole

and precision cutting across a variety of metals

Insert Size: 40