BROWNELLS “IN-HOLE" KITS

The Brownells “In-Hole” Kits provide a versatile assortment of precision coil springs designed for firearm repairs, custom builds, and general gunsmithing applications where springs must operate inside confined holes and recesses. Constructed from high-tensile spring wire and wound with controlled tension, these springs are engineered to compress smoothly while helping reduce binding for reliable operation.

Available in both light-duty and heavy-duty configurations, each kit includes a selection of spring sizes designed to function freely inside holes ranging from 3/32" (2.4mm) to 1/4" (6.4mm) diameter. These spring assortments are ideal for replacing worn springs, fabricating custom components, and maintaining a ready supply of commonly used spring sizes on the gunsmithing bench.

FEATURES

• Construction: High-Tensile Spring Wire
• Design: Controlled-Tension Coil Springs
• Purpose: For Applications Requiring Springs to Operate Inside Restricted Areas
• Performance: Smooth Compression with Reduced Binding
• Application: Firearm Repair, Restoration, and Custom Gunsmithing
• Configuration: Available in Light-Duty and Heavy-Duty Versions
• Spring Assortment: 6 Different Sizes Per Kit
• Length: 12" (30.5cm) Springs for Custom Fitting

SPECIFICATIONS

• Material: High-Tensile Spring Wire
• Spring Length: 12" (30.5cm)
• Hole Size Compatibility: 3/32" (2.4mm) to 1/4" (6.4mm)
• Spring Quantity: 12 Springs Per Kit
• Available Models: Kit #1 ID-12 Light Duty, Kit #2 ID-12 Heavy Duty
• Made in USA

INCLUDES IN KITS

Kit #1 ID-12 Light Duty

• Total Springs: 12
• Number of Sizes: 6
• Configuration: Light Duty
• Length Per Spring: 12" (30.5cm)

Kit #2 ID-12 Heavy Duty

• Total Springs: 12
• Number of Sizes: 6
• Configuration: Heavy Duty
• Length Per Spring: 12" (30.5cm)

The Brownells “In-Hole” Kits are a practical addition to any gunsmithing bench, providing a convenient assortment of precision coil springs for repair and custom firearm applications. With multiple spring sizes, high-quality construction, and both light-duty and heavy-duty options, these kits help ensure you have the right spring on hand when a project demands it.