Metal File for Rubber Stoppers
Product Code : SCL-CL-11897
Metal File for Rubber Stoppers (SKU SCL-CL-11897) is a hand tool with a comfortable handle and six removable metal heads, sized from 3 mm to 20 mm, for working the holes in rubber stoppers. Lab assistants and teachers use it when preparing stoppers for delivery tubes, thermometers and gas-preparation set-ups. The file is one of the chemistry lab items that Science Lab Supplies provides from Ambala, India to schools, colleges, tender contractors and distributors.
Specifications
The tool combines one handle with six interchangeable metal heads covering 3 mm to 20 mm, so a single file can be matched to small and large stopper holes. It is intended for rubber stoppers, is built for repeated use in a busy laboratory, and the handle is designed to be convenient to grip.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11897 |
| Model no. | SCI/LSS-1584 |
| Heads | 6, removable |
| Head sizes | 3 mm to 20 mm |
| Material of heads | Metal |
| Compatible with | Rubber stoppers |
| Use | Repeated use; durable construction with an easy-grip handle |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Rubber Stopper File
A rubber stopper file lets a technician shape or enlarge the hole in a stopper so that a glass tube, thermometer or funnel stem fits snugly and the joint does not leak. It supports the glassware set-ups used in CBSE/NCERT chemistry practicals, B.Sc. chemistry labs and laboratory-technician training.
- Class 10 chemistry: fitting delivery tubes for preparing and collecting gases.
- Class 11–12 practicals: sizing a stopper hole for a thermometer in boiling-point work.
- Distillation and filtration set-ups: matching stopper holes to condenser or funnel stems.
- Lab preparation: refreshing worn or uneven holes so stoppers can be reused.
Choose the head closest to the required diameter, work the hole gradually and test the fit often, because rubber cannot be put back once removed. Wetting the glass before inserting it through the finished hole helps it slide in safely.
Standard Scope of Supply
Each Metal File for Rubber Stoppers comes as one handle with six removable metal heads in sizes from 3 mm to 20 mm, as listed in the table. Rubber stoppers, glass tubing and thermometers are separate items and can be quoted alongside the file.
Packing, MOQ and Lead Time
Order one file for the preparation room or several for a college with many benches; the quotation you receive lists packing, delivery time and price for that exact quantity. Stoppers in matching sizes can be added so the lab receives tools and consumables together.
With an Importer-Exporter Code in place, Science Lab Supplies is able to ship to buyers in Vietnam, Malaysia, Peru, Egypt, Iraq and Nigeria. Send your requirement from the contact page, build a list in the enquiry cart, or see the lab tender page for institutional tenders.
Frequently Asked Questions
How many heads come with the file?
Six. The removable metal heads cover sizes from 3 mm to 20 mm, so the same handle can serve narrow thermometer holes and wider openings for tubes or stems.
Can the file be used on stoppers other than rubber?
The specification lists it as compatible with rubber stoppers. For cork or other materials, ask through the contact page before ordering.
Who provides the Metal File for Rubber Stoppers?
It is supplied by Science Lab Supplies from Ambala, India, and can be quoted singly or in quantity as part of its chemistry lab equipment in India range for schools, colleges and distributors.
Is the file meant for occasional or regular use?
Regular use. It is described as suitable for repeated use, with durable heads and a convenient handle for routine stopper preparation.
Related Stoppers and Tubing
The file is only half of the job: stoppers, tubing and a way to cut glass are needed to complete a gas-preparation or distillation assembly. These four Chemistry Lab items go naturally with it and can be listed on the same quotation.
- Stoppers — solid red rubber stoppers from 3 mm to 20 mm.
- Rubber Stoppers of Various Diameters with Holes — ready-bored stoppers for tubes.
- Rubber Tube (Laboratory) — flexible tubing to link glass connections.
- Equipment for Cutting Glass Pipes — for preparing glass tubes to pass through stoppers.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
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