Narrow gauge set

Millimetre Precision for Slot Car Chassis Setup

The T800 narrow feeler gauge set is a workshop tool designed for those who leave nothing to chance in tuning their cars. With six blades covering thicknesses of 0.5, 0.6, 0.7, 0.8, 0.9, and 1.0 mm, this set encompasses the entire range of measurements typically required by the most common competition regulations in the slot racing world.

Design Adapted for Bench Work

The gauges have dimensions of 30 x 100 mm, featuring a narrow and elongated profile that facilitates their insertion under the chassis even in hard-to-reach areas: the sides of the motor cradle, the guide area, or the front axle supports. This specific format makes a difference compared to generic gauge sets, whose wider blades can be uncomfortable or outright useless in such tight spaces.

Function and Performance in Technical Scrutineering

The main function of these gauges is to accurately measure the car's clearance from the track, that is, the distance between the bottom of the chassis and the rail surface. Poorly adjusted clearance can cause the car to scrape the track in corners, lose grip, or, in the context of a technical inspection, be excluded for failing to meet the minimum regulatory height.

This set also allows for precise adjustment of the chassis tilt and front axle height, two parameters that directly affect the car's balance and its behaviour during braking and weight transitions. Working with a gauge of the appropriate thickness for each adjustment eliminates subjectivity and allows for the same configuration to be reproduced from one session to another.

Material Quality and Durability

The blades are made from high-quality materials that ensure perfect flatness and wear resistance. A gauge that deforms or loses its original calibration becomes useless; therefore, rigidity and dimensional stability are basic requirements for a tool of this type.

Ideal for…

• Tuners competing in categories with minimum height technical verification.
• Fine-tuning of clearance and tilt before each training session.
• Clubs and organisers needing to verify multiple cars quickly and reliably.
• Any enthusiast wanting to take their car preparation to a professional level.

Frequently Asked Questions

What is the difference between this narrow gauge set and a standard set?

The 30 x 100 mm format is significantly narrower than that of general-use gauge sets. This reduced width allows the blades to be inserted under the chassis in very tight areas where a conventional gauge would not fit or would do so by forcing the car, potentially altering the measurement.

What scales and chassis systems is this set valid for?

The gauges measure distances, so their use does not depend on the scale or track system. They are valid for any slot car, regardless of whether it has a rigid, flexible, or articulated chassis, and whether it runs on universal track (Scalextric, Ninco) or Sport track (Scaleauto, Slot.it).

What thickness of gauge is typically required by regulations?

This varies according to the regulations and category. The most common values range between 0.5 and 1.0 mm, which is precisely the range covered by this set. Always check the specific regulations of your championship or club to know the exact measurement required for verification.

How do you correctly use a gauge to measure chassis clearance?

The blade of the specified thickness in the regulations is inserted between the bottom of the chassis and the flat reference surface (usually a verification plate or the track itself). If the gauge fits with slight resistance, the clearance is correct; if it fits loosely, the chassis is too high; if it does not fit, it is below the minimum measurement and needs adjustment.

Is it necessary to use all the blades in the set or just the one of the regulatory thickness?

For technical verification, the blade of the required thickness is sufficient. The others are useful during preparation to progressively adjust the clearance or check different tilt configurations before finalising the adjustment.

T800 narrow feeler gauge set for slot car chassis setup — 6 precision blades from 0.5 to 1.0 mm in a slim 30x100 mm format. Essential tool for technical scrutineering and chassis height adjustment in competitive slot car racing. Compatible with any scale or track system, including Scalextric, Ninco, Scaleauto and Slot.it. A must-have for serious slot car builders and club scrutineers who demand repeatable, regulation-compliant measurements.