Thin Parallel Bar Set Pro Grade Ten Pairs One Eighth Inch Thick By Six Inch Long Precision Parallels For Machinist Lathe Tools Ground And Hardened Tool Steel With Durable Storage Box

Pro Grade 1/8 in Parallels Set with Box, 20 pcs
✔️ 1/8 in thick, 6 in long, 10 sizes in a storage box (20 pcs)

These precision parallels are hardened tool steel blocks used to align workpieces during setups on lathes, mills, and surface plates. They provide stable seating and accurate reference surfaces for repeatable results.

✅ 1/8 in (3.175 mm) thick, 6 in (152.4 mm) long per piece, ground and hardened with two holes per piece
✅ 20 pieces total (10 pairs): sizes 1/2 in to 1-5/8 in (12.7-41.28 mm) in 1/8 in steps
✅ Stored in a durable plastic box for easy transport and organization
✅ Precision tolerance within ±0.0003 in (±0.008 mm) across the set

💡 What is a precision parallel bar set used for in machining and how does it improve setup accuracy?

Handy tool for repeatable alignment during machining setups.

• Precise references for stack height, squareness, and seating
• Hardened tool steel resists wear and maintains accuracy
• Storage box keeps all 20 pieces organized and portable
• Designed for use on lathes, milling machines, and surface plates