Starrett A2 Air Hardening Tool Steel No.54619: 3/16" Thickness X 6" Width X 18" Length Hss end mills This is a beautiful tool

This is a beautiful tool and very useful

bottom diameter 5" depth 5"

Improved joint designed for tension adjustment

02) on both edges on one side

Deluxe Starrett Steel and Vinyl padded case for 6" / 150mm calipers

Starrett A2 Air Hardening Tool Steel No.54619: 3/16" Thickness X 6" Width X 18" Length Hss end mills This is a beautiful toolStarrett A 2 Air Hardening Tool Steel No. 54619: 3 16" Thickness X 6" Width X 18" Length 3 16 x 6 x 18", AISI A 2 (497) Flat Stock. AISI A 2 5% chromium air hardening steel features high wear and abrasion resistance. Maintains close dimensional accuracy throughout the heat treating process. The wide 75 hardening range makes this virtually foolproof. High wear resistance is also ideal for punches and dies to stamp silicon, stainless steels, monel