Capri Tools 3/16 in. Double Flaring Tool CP21110-316 — Compact 45° SAE Flare, Portable Low‑Profile Design

The Capri Tools 3/16 in. Double Flaring Tool (CP21110-316) is a compact all‑in‑one flaring tool engineered to make precise 45° SAE double flares on 3/16" tubing faster and in tighter spaces than traditional flaring sets.

This portable tool streamlines tubing work for brake and fuel lines by combining a clamp, flaring cone, and detachable die into a single, travel‑ready unit. Designed for non‑stainless steel, nickel, and copper tubing, the CP21110‑316 reduces setup time and lets you finish reliable double flares with only two additional wrenches (10 mm and 17 mm). Its detachable die expands versatility when paired with a bench vise for heavy‑duty gripping.

How does this tool speed up making 45° SAE double flares?

The CP21110‑316 simplifies the traditional multi‑piece process by integrating the clamp and cone into a compact body that aligns and forms flares quickly. Clear alignment reduces rework, and the flaring action is optimized for repeatable 45° angles without swapping multiple adapters.

• Integrated clamp and forming cone for fewer setup steps
• Precision machined die ensures consistent 45° flare geometry
• Works with common tubing materials to avoid special tooling
• Produces flares faster than older generation flaring tools

Can I use this tool in tight spaces or while the line is still on the vehicle?

Yes. The tool’s compact footprint and low profile were designed so technicians can flare lines in place on a vehicle or in confined workshop areas. Its ergonomic shape gives you access where bulkier kits would be impractical.

• Low‑profile body fits between brackets and undercarriage constraints
• Portable design allows on‑vehicle flaring without full line removal
• Detachable die enables alternate clamping methods where space is limited

Which tubing materials and sizes are compatible with this model?

The CP21110‑316 is tailored for 3/16" tubing and performs best on non‑stainless steel, nickel, and copper lines. It is not intended for stainless steel tubing, which can require specialized tooling due to hardness and springback.

• Compatible tubing diameter: 3/16 inch (SAE standard)
• Best used with non‑stainless steel, nickel, and copper tubing
• Not recommended for stainless steel without appropriate adapters

What extra tools or steps do I need to start flaring with this device?

You’ll only need two common wrenches—a 10 mm and a 17 mm—to operate the CP21110‑316, making it simple to add to an existing hand tool set. For more secure holding during heavy work, detach the die and secure it in a bench vise before flaring.

• Required: one 10 mm wrench and one 17 mm wrench
• Optional: bench vise for greater grip using the detachable die
• Basic steps: clamp tubing, seat the cone, tighten to form, inspect flare

Who is this for? The Capri Tools CP21110‑316 is aimed at professional mechanics, mobile technicians, and serious DIYers who need a compact, reliable flaring tool for brake, fuel, or hydraulic lines in 3/16" tubing. If you value a tool that reduces setup time, works in tight locations, and pairs with a minimal set of wrenches, this model is a practical addition to your toolkit. It’s especially useful for field repairs, garage work, and shops that require consistent 45° SAE double flares without the bulk of a full flaring kit.