Somta Series 501 – HSS Metric Bottom Tap M30 x 3.5HSS Metric Bottom Tap M30 x 3. 5 Somta Series 501 The SOMTA 5013003 M30 x 3. 5 HSS Metric Bottom Tap is engineered for creating full depth threads in blind holes where maximum thread engagement is required. With a short chamfer of 12 threads, this bottoming tap enables threading close to the base of the hole. Made from premium high speed steel (HSS), it delivers excellent wear resistance, durability, and cutting precision in steel, cast iron,

Bottoming Chamfer – Short lead (1–2 threads) for threading to full depth in blind holes

Thickness (T): 0

Bright Finish

or any repair job that requires durable thread restoration in soft metals

High-Temperature Durability: Can withstand temperatures up to 800°F

Insize Square Set

Easy to use rigid rule made of hardened steel

graduation 1° (code 4799-180)

5 times the diameter) of these inserts provides an extra level of durability and ensures a stronger

accurate holes with minimal burrs and smooth edges

Versatile: Perfect for a variety of applications

Large-Diameter Precision Reaming – Designed for final sizing of 1‑1/2″ holes with excellent surface finish