''''in-Hole'''' Kits - ''''in-Hole'''' Kit #1 Id-12

Name: ''''in-Hole'''' Kits - ''''in-Hole'''' Kit #1 Id-12
Brand: Brownells
SKU: 080950325
Price: 14.99 USD
Availability: InStock

Overview

This spring kit is designed for use in restricted spaces where a controlled-tension coil spring needs to operate inside a hole without binding under compression. It includes 12 springs in 6 sizes, sized to function freely in holes from 3/32" to 1/4", making it useful for compact repair or custom fitting work. The 12" length provides material to work with, while the light-duty configuration suits applications that call for a lighter spring load. Made with high tensile spring wire, it offers a practical option when space is limited and smooth spring action matters.

AI Recommendation

This spring kit is designed for use in restricted spaces where a controlled-tension coil spring needs to operate inside a hole without binding under compression.

Why Hunters Choose the Brownells

Controlled-tension Wound

For smooth operation without binding

Made Fit

Inside restricted areas

Includes 12

Coil springs in six sizes

Functions Freely

Inside holes from 3/32 inch

12-inch Length

Multiple spring options in one

Key Features

Controlled-tension coil springs for smooth operation without binding under compression.
Designed to fit inside restricted areas and within holes.
Kit includes 12 coil springs in six sizes.
Works in holes from 3/32 inch (2.4mm) to 1/4 inch (4.7mm).
12 inch (30.5cm) spring length.
Kit #1 ID-12 is a light-duty version from Brownells.

Best Used For

Users needing light-duty coil springs for restricted spaces inside holes and tight assemblies.
Gunsmiths or tinkerers working with compact mechanisms that require controlled-tension spring action.
Anyone selecting from multiple spring sizes for fitment inside holes from 3/32 to 1/4 inch.
Shop users who want a 12-inch spring kit for trimming or adapting to specific applications.
Buyers needing a general-purpose in-hole spring assortment rather than a single fixed-size spring.

Specifications

Controlled Tension Wound	Yes
Duty Rating	Light duty
Fits Hole Diameter Range	3/32" (2.4mm) to 1/4" (4.7mm)
Kit Type	Kit #1 Id-12
Length	12" (30.5cm)
Number Of Coil Springs	12
Number Of Sizes	6
Smooth Operation Without Binding	Yes
Spring Wire	High tensile spring wire

Pros

Controlled-tension wound for smooth operation without binding under compression.
Made to fit inside restricted areas.
Includes 12 coil springs in six sizes.
Functions freely inside holes from 3/32 inch to 1/4 inch.
12-inch length provides multiple spring options in one kit.
Light-duty kit designation is clearly specified.

Considerations & Trade-offs

Light-duty kit, so it is intended for lighter applications rather than heavier spring loads.
The 6 sizes are designed for holes from 3/32 in. to 1/4 in., so it is not a universal fit outside that range.
The kit is 12 in. long overall, which may require cutting or selecting the appropriate spring length for a given job.
This is a spring kit rather than a finished assembly, so it is best suited to users who need to match or adapt spring size to a specific in-hole application.

Suggested Comparisons

Replacement coil spring kits
Light-duty spring assortments
Small-diameter spring kits
General gunsmithing spring kits

Suggested Accessories

Spring assortment organizer
Small parts storage tray
Precision measuring tools
Bench vise

Frequently Asked Questions

What is included in the In-Hole Kit #1 ID-12?

The kit includes 12 coil springs in 6 sizes.

What size openings are these springs made to fit inside?

They are made to function freely inside holes from 3/32 in. (2.4 mm) to 1/4 in. (4.7 mm).

How long are the springs in this kit?

The springs are 12 in. long (30.5 cm).

Is this kit light duty or heavy duty?

Kit #1, ID-12 is listed as light duty. Kit #2, ID-12 is listed separately as heavy duty.

What material information is provided for these springs?

The specifications state high tensile spring wire. No other material details are provided.