10-Pair Machinist Parallel Block Set, 3-Inch Long, 1/8-Inch Thick Alloy Steel Precision Blocks With Matched Pairs And Ultra Tight Parallelism.0002 For Quick, Accurate Alignment In Tooling And Fixtures
✔️ 20 pieces total, 10 matched pairs, in a sturdy plastic case
These machinist parallel blocks are precision tools used to align and square workpieces in fixtures, jigs, and milling setups. Made from alloy steel for durability, they provide rigid support and highly consistent surfaces to keep tooling and fixture work accurate.
✅ Material: alloy steel with good mechanical properties
✅ Dimensions: 3 in long by 1/8 in thick; widths span from 1/2 in to 1-5/8 in
✅ Width options: 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-5/8
✅ Tolerances: size tolerance about 0.0003 in; parallelism about 0.0002 in
✅ Holes: two holes per block; paired blocks share the same hole size
✅ Pack: 20 pieces (10 matched pairs) in a durable plastic case
💡 What is a parallel block set used for in precision machining and fixture alignment? Handy overview.
- Provides repeatable, true-parallel surfaces for fixtures and tooling- Helps square, center, and position workpieces in mills, drills, and assemblies
- Maintains tight tolerances like 0.0003 in size and 0.0002 in parallelism
- Includes 20 pieces in matched pairs across 10 widths in a rugged case