MHC 1/4" Thick Precision Machinist Parallel Set 9 Pairs 6" Long 637-7035 - Lightly Used
Condition: Lightly Used
The metalworking shop standard for ultra-precise workholding, rigid part elevation, and flawless milling machine vise setup.
When staging complex workpieces in a milling vise, maintaining absolute parallelism is non-negotiable. The MHC Industrial Supply 9-Pair Precision Parallel Set (Model 637-7035) is the definitive setup system relied on by professional machinists, toolmakers, and CNC operators. Arriving brand new in a fitted hardshell protective organizer case, this heavy-duty 1/4" thick master collection ensures structural rigidity and exact part positioning across a versatile spectrum of milling, drilling, and grinding applications.
Forged from premium, high-quality alloy steel, every parallel bar in this set is meticulously hardened to a rugged HRC 55–62 threshold and precision-ground on all four functional surfaces. Each of the 9 matched pairs delivers a tight, high-tier tolerance threshold of ±0.0003" accuracy for both parallelism and paired height similarity. Spanning a 3/4" to 1-3/4" height range in flawless 1/8" increments, these 6-inch long bars feature a two-hole weight-reduction design to make part change-outs swift and effortless.
Key Features & Benefits
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Premium 1/4" Heavy-Duty Thickness: Extra-thick architectural design provides massive structural resistance against lateral jaw pressure, completely eliminating bar flex or tipping under high torque clamping.
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Ultra-Precise Matching Tolerances: Ground to a strict ±0.0003" tolerance window, ensuring perfectly flat part registration and repeatable machining dimensions from part to part.
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No-Skip 9-Pair Setup Spectrum: Comprehensive incremental selection ranging from 3/4" up to 1-3/4" heights to keep your workpiece perfectly elevated above the vise base.
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Hardened Alloy Steel Construction: Heat-treated to a heavy industrial HRC 55–62 rating, providing supreme resistance against scratches, ambient shop dings, and surface deformation.
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Two-Hole Weight Reduction Profile: Pre-machined with dual through-holes to optimize balance, ease extraction from deep vise jaws, and reduce overall setup weights.
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Heavy-Duty Compartment Storage Case: Arrives completely organized in a impact-resistant case to guard your ground surfaces against grit, corrosion, and tool-on-tool collision.
Technical Specifications
| Attribute | Specification |
| Brand | MHC Industrial Supply (MHC Tools) |
| Model Number (MPN) | 637-7035 |
| Condition | Brand New (Original Factory Case) |
| Total Components | 9 Matched Pairs (18 Pieces Total) |
| Thickness / Width | 1/4 Inch (0.250") |
| Length | 6 Inches (6.000") |
| Accuracy / Parallelism | ±0.0003" Height / Parallelism Limit |
| Hardness Rating | HRC 55 - 62 Case Hardened |
| Height Profiles Included | 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8", 1-3/4" |
| Design Feature | Dual Through-Holes Per Bar |
What’s Included?
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9x Matched Pairs of MHC 1/4" x 6" Precision Parallels
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1x Heavy-Duty Rigid Fitted Storage Organizer Case
Why Trust MHC Tools? MHC Industrial Supply is widely recognized for delivering high-precision, commercial-grade machinist setup equipment and tooling accessories that perfectly bridge the gap between high-dollar inspection tolerances and everyday workshop affordability.