Micro Flame Bunsen Style Burner For Butane Gas Bench Blocks & Anvils MediStud colored birthstones are simulants

MediStud colored birthstones are simulants and are not genuine gemstones

Reversing motor direction can extend the life of certain abrasives

Two variants listed in the source description (Part # 36B-49 at 7

Square edge profile for precise contact on tools and hard metals

Micro Flame Bunsen Style Burner For Butane Gas Bench Blocks & Anvils MediStud colored birthstones are simulantsThe Micro Flame Bunsen Style Burner is a compact, self igniting torch that runs on butane fuel, giving jewelers, wax carvers, and metalsmiths a versatile open flame tool for the bench. Use it in the manner of an alcohol lamp for gentle, controlled heat, or increase the flame for tasks that require more intensity just like a traditional Bunsen burner. An adjustable air intake valve lets you fine tune the flame character for precise control over heat