Bought these to mark tool ID numbers on steel parts while working. It works very well with mild steel and tool steel, both soft and hardened. Stainless steel is not marked. I haven't tried aluminum or other materials.
KeLDE Light Hand Staple Gun Kit With 1500Pcs JT21 Staples (1/4, 5/16, 3/8 Inch) For Upholstery, DIY Projects, Furniture Repair And Carpentry
28 Review
168-Piece General Household Tool Set Kit With Plastic Storage Case In Bright Orange By CARTMAN
40 Review
14-In-1 Multitool Camping Accessory Gift Set - Perfect Christmas Stocking Stuffers For Men And Women!
35 Review
DURATECH Flare Nut Wrench Set, SAE, 3-piece, 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', High-Quality CR-V Steel, Organizer Pouch Included
25 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review