SUNNYSONGPortable Brinell Hardness Tester KH180,can be Freely Converted to All Hardness Systems (HL, HB, HRB, HRC, HRA, HV, HS) Without Calculation

Portable hardness testers can measure materials: steel and cast steel, alloy tool steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy (brass), pure copper, forged steel (KH180)

Dremel 120-Volt Engraver Rotary Tool with Stencils - Crafting Machine Perfect for DIY Personalizing and Engraving Leather, Metal, Glass, and Wood , Black, 290-02