Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cable Review (2026)

microloc wire rope grab — trailing, 5/8 in cable review: the short answer

Short answer: Affiliate disclosure: As an Amazon Associate, WC Safety earns from qualifying purchases at no extra cost to you. Commissions do not influence our review.

Affiliate disclosure: As an Amazon Associate, WC Safety earns from qualifying purchases at no extra cost to you. Commissions do not influence our review.

Reviewed by Steven Eaton, WC Safety Editorial

The Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cable is a vertical lifelines & rope grabs from Miller by Honeywell, listed. This review restates what the product page documents, places it in its fall protection lane, and points to the ranked guides for the head-to-head field.

What the Product Page Documents

Published July 16, 2026 · Last updated July 27, 2026

A wire rope grab locks onto a steel cable lifeline rather than a fiber rope, and the Miller 8173/U MicroLoc is a trailing one: it follows you up and down a 5/8 inch wire lifeline hands-free, then locks quickly onto the cable the instant a fall begins. Compact corrosion-resistant stainless steel keeps it light and durable in a universal size. This is the cable counterpart to a standard rope grab — if your vertical lifeline is wire, not fiber, this is the device that rides it.

Shoppers searching a cable grab fall protection device or a steel rope grab land here; as a trailing rope grab it is fully hands-free, and as wire rope grab fall protection it pairs only with a cable lifeline. Match it to 5/8 inch wire rope, covered below — it does not work on synthetic fiber rope.

Continuous fall protection on a wire (cable) vertical lifeline for work-at-height and confined-space jobs — Miller lists agriculture, construction, utilities, oil and gas, manufacturing, government, and municipal work. It sits in the vertical lifelines & rope grabs collection, plays the connector role in the ABC system explained in the fall protection equipment guide and the ABCDs of fall protection, and applies wherever a fall hazard triggers the rules in when is fall protection required.

Where It Earns Its Slot

Where it earns its slot: A wire rope grab locks onto a steel cable lifeline rather than a fiber rope, and the Miller 8173/U MicroLoc is a trailing one: it follows you up and down a 5/8 inch wire lifeline hands-free, then locks quickly onto the c. The rest of this review holds the listing to exactly that brief — limits, alternatives, and the ranked guides included.

Honest Limits

Its boundaries are structural: rated capacity covers the equipped worker, tools included; protection exists only inside a properly assembled system; and clearance, inspection, and retirement rules are what turn the label into an actual arrest. None of them are optional.

Pros and Cons

Alternatives in the Same Lane

• 3M DBI-SALA ExoFit X300 Comfort Vest Fall Arrest Harness — A
• 3M DBI-SALA ExoFit X100 Construction Positioning Harness — 3
• 3M DBI-SALA ExoFit X100 Comfort Vest Fall Protection Harness
• 3M DBI-SALA ExoFit X200 Comfort Vest Safety Harness — Padded
• 3M DBI-SALA ExoFit Harness X200 — Comfort Construction Posit
• 3M DBI-SALA Delta 1102000 Full Body Harness — Vest-Style, 42
• 3M Protecta First AB17540 Construction Harness — Back & Side
• 3M Protecta Harness (PRO 1191260) — 3 D-Ring Full Body Harne
• 3M Protecta Full Body Harness for Welders — 1191370 Hot Work

Fall Protection Guides

• Best Fall Protection Kits
• Best Vertical Lifelines & Rope Grabs
• Best Suspension Trauma Straps
• Best Carabiners & Connectors
• Construction Site PPE Guide

Browse by Category

• Fall Protection
• Lanyards & Lifelines
• Carabiners & Connectors
• Vertical Lifelines & Rope Grabs
• Tool Lanyards
• Hard Hats

The Bottom Line

Rated 4.6/5 on documented spec, configuration, and value. The Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cable does the job its listing describes — the guides above tell you whether it's the right pick against the field.

Primary sources for this page

The wording behind this page sits in OSHA 29 CFR 1926.501, OSHA 29 CFR 1910.132, NIOSH Personal Protective Equipment.

Why trust this page?

Why trust this page? Every figure on it is taken from the published text of the standard or the manufacturer document named beside it, not from a secondary summary. WC Safety is an independent PPE review site: we hold no inventory and sell nothing directly, so there is no product we need this page to favour. Where sources disagree, the page says so and plans on the more conservative figure rather than picking one.

Methodology: how this page is maintained

Methodology. Figures are read from the primary source and re-checked whenever the underlying standard or a manufacturer document changes. No laboratory testing is performed for this page. Where a figure is not published, the page states that rather than estimating it, because a plausible invented number is more dangerous than an absent one.

More questions on this topic

How much does the Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cab cost?

at the linked listing — prices track the live page, and configuration choices there can shift the number.

What does the Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cab listing actually document?

A wire rope grab locks onto a steel cable lifeline rather than a fiber rope, and the Miller 8173/U MicroLoc is a trailing one: it follows you up and down a 5/8 inch wire lifeline hands-free, then locks quickly onto the cable the instant a fall begins. Compact corrosion-resistant stainless steel keep…

What are the alternatives to the Miller 8173/U MicroLoc Wire Rope Grab — Trailing, 5/8 in Cab?

The sibling vertical lifelines & rope grabs options linked in this review, ranked head-to-head in the fall protection guides below — start with the buyer's guides for the field view.