RIDGID RNKSRS01B 18V NUKE SubCompact Brushless One-Handed Reciprocating Saw (Tool Only) review

RIDGID's RNKSRS01B is the tool-only retail version of its 18V NUKE SubCompact Brushless One-Handed Reciprocating Saw. The exact U.S. product page identifies the saw unit as RNKSRS01 and lists one wood-cutting blade; it explicitly says the battery and charger are sold separately. That package distinction matters more than the “compact” label if an existing battery platform or a ready-to-work kit is part of the decision.

Format and controls, as documented

This is a cordless, brushless, compact one-handed design, not a smaller two-hand saw in a different color. RIDGID lists a 7/8-inch stroke and up to 3,200 strokes per minute at no load, with a variable-speed trigger, pivoting shoe, tool-free blade change and LED light. The product page calls those design features out, and the operator's manual whose cover names RNKSRS01/R8648 supplies the operating context: the shoe pivots, trigger pressure controls speed, and the clamp rotates to release and secure the blade. These are published specifications and instructions, not results from a cutting test.

There is a useful point of comparison within RIDGID's own current one-handed line. The separate RRS01B page lists a 3/4-inch stroke and up to 3,100 SPM, while this NUKE page lists 7/8 inch and up to 3,200. RIDGID advertises the NUKE as up to 35% faster than RRS01, but a no-load maximum and a brand comparison claim do not predict your cut rate in a particular material. Blade tooth pattern, material, support, battery condition and operator technique all matter. The 7/8-inch stroke is the firmer model-specific distinction; no claim here turns it into a guaranteed speed advantage.

Compact access is not a substitute for support

RIDGID positions the subcompact body for tight spaces and overhead access. That may make it easier to bring a reciprocating blade to a constrained cut than a longer, two-handed body, but “one-handed” describes the format, not an assurance that an awkward cut will stay controlled. The model-matched manual emphasizes stable footing, securing the workpiece with clamps or a vise, letting the blade reach speed before contacting the material, keeping the shoe against the work, and not forcing the saw. It also warns against a ladder or unstable support. If your task requires a free hand for balance or places the blade near hidden wiring, piping or mechanical hazards, solve that access and support problem before choosing a smaller saw.

Blade and shoe details that affect real use

The tool-free clamp is a real convenience, but its manual procedure is specific: remove the battery before blade service, rotate the clamp counterclockwise, fully seat the blade, release the clamp and pull-check it. The manual allows the teeth to face either up or down, recommends selecting a blade for the material, and advises slower speed for metal cutting. For plunge cuts in wood or wallboard, it warns against blades longer than six inches because they can whip; that is a plunge-cut warning, not a claim that all other cuts accept any blade length. RIDGID's page also documents a pivoting shoe, which supports contact as the blade moves; it does not publish indexed shoe positions. The materials listed by the matched manual include wood products, plastic, drywall and several metals, but neither that list nor a maximum SPM provides a named thickness or cut-capacity limit.

Weight and power-package checks

RIDGID publishes 3.8 lb, but the page does not say whether that is bare tool or battery-installed. I therefore treat the bare-tool weight as unknown: this assessment does not claim that RNKSRS01B meets a 3.5 lb ceiling, nor use 3.8 lb as the saw's complete carry weight. If overhead mass is decisive, get the measurement basis for the exact saw and the battery you plan to use rather than adding or subtracting an assumed pack weight. Selectable orbital action is also not established in the exact product description or matched manual and is not treated as a feature.

I checked RIDGID's current recall notices page, whose captured notice names framing nailers but gives no RNKSRS01B-specific disposition. This review does not claim the saw has no recall; verify current official notices using the exact model before use.

The exact page says RNKSRS01 is compatible with RIDGID 18V batteries and lists the battery and charger separately. For an existing RIDGID owner, verify the actual pack and charger model against RIDGID's compatibility guidance; for a new platform buyer, include both power components in the real package comparison. Do not mistake the photograph of the saw body and installed blade for a box list. The manual is available through RIDGID's official manuals search, but the exact page's included list names only the saw and blade, so this review does not claim that a printed manual is in the carton.

Research-based assessment

RNKSRS01B has a well-documented compact cordless format, blade-change method and pivoting shoe, and its 7/8-inch stroke and 3,200-SPM no-load ceiling distinguish it on paper from the RRS01B. It is a plausible fit when that format and an existing RIDGID 18V system are the priority. Its meaningful limits are the tool-only package, unknown bare-tool weight, no verified orbital mode, and no published cut-capacity or runtime figure in the sources reviewed. I have not used or tested this saw; no price, local stock, runtime or comparative cutting result is claimed.