4mm Drill Stop Collar – HARFINGTON Steel Depth Ring with Hex Wrench

Description

Product Overview

The HARFINGTON 4mm Drill Stop Collar is engineered for users who demand exactness and repeatability in every drilling operation. Constructed from high‑grade steel, the collar resists corrosion and wear, delivering a long service life even in demanding environments. The anodized surface finish not only adds a sleek, professional appearance but also enhances durability by protecting the metal from rust and abrasion. The set includes two collars, each sized to accommodate a 4mm (5/32 inch) drill bit, and a hex wrench that simplifies installation and adjustment. The double‑hole clamping mechanism provides a stronger grip compared to single‑hole designs, reducing the risk of slippage and ensuring the collar stays firmly in place while you work. With a compact package measuring 5.51 x 3.94 x 0.39 inches and weighing just 0.64 ounces, the product is easy to store and transport, making it an ideal addition to any tool kit.

Usage

This drill stop collar is versatile enough to be used across a wide range of materials and applications. Whether you are drilling precise holes in hardwood for cabinetry, creating uniform openings in plastic components for electronics enclosures, or setting depth limits for masonry anchors, the collar delivers consistent results. The adjustable design allows you to set the exact depth required for each project, eliminating the guesswork that often leads to material waste or re‑work. The included hex wrench makes it simple to tighten or loosen the collar without the need for additional tools, saving time on the job site. Professionals in automotive repair, furniture manufacturing, and construction will appreciate the ability to quickly set drilling limits for repetitive tasks, while hobbyists and DIY enthusiasts will find the collar invaluable for projects that require a high degree of accuracy, such as model building or custom woodworking.

Why Choose Us

Choosing the HARFINGTON 4mm Drill Stop Collar means selecting a product that combines precision engineering with practical design. Our commitment to quality is reflected in the use of premium steel and a robust anodized coating that together provide resistance to wear, corrosion, and impact. Each collar undergoes rigorous testing to verify that it meets exacting standards for depth accuracy and clamping strength. The double‑hole design not only improves grip but also distributes pressure evenly, reducing the chance of deformation on the shaft. In addition, HARFINGTON offers responsive customer support and a straightforward warranty process, ensuring that any concerns are addressed promptly. By investing in this collar, you gain a reliable tool that enhances productivity, reduces material waste, and extends the lifespan of your drill bits, ultimately delivering cost savings and superior performance on every job.

Key Features

• Precise 4mm depth control for uniform hole placement across multiple materials.
• Durable steel construction with anodized finish resists rust and wear.
• Double‑hole clamping provides stronger grip and reduces slippage during use.
• Includes hex wrench for quick, tool‑free adjustment and secure installation.
• Backed by responsive customer service and a clear warranty for peace of mind.

FAQ

Can this collar be used with drill bits larger than 4mm?

The collar is specifically sized for 4mm (5/32 inch) drill bits. Using larger bits may compromise the clamping ability and could lead to inaccurate depth stops. For larger diameters, we recommend selecting a collar that matches the bit size.

Is the anodized surface safe for food‑contact applications?

Yes, the anodized coating is non‑toxic and does not leach harmful substances, making the collar suitable for woodworking projects that involve food‑grade materials, provided the tool is kept clean.

How do I adjust the depth setting?

Place the collar onto the shaft, use the included hex wrench to tighten the set‑screw, and slide the collar to the desired depth mark on the drill bit. Once positioned, re‑tighten the screw to lock the setting in place.

What warranty does HARFINGTON offer for this product?

HARFINGTON provides a one‑year limited warranty covering manufacturing defects. If you encounter any issues, contact our support team with your purchase details for a replacement or repair.

Can the collar be used on both metal and wood shafts?

Absolutely. The steel construction and adjustable clamping mechanism make it compatible with a variety of shaft materials, including metal, wood, and composite shafts commonly found in machining and woodworking equipment.