Tap and Drill Bit Set 1/4-36 UNS 2B CoCud HSS Tap & 5.5mm Spiral Drill

Description

Product Overview

The CoCud Tap and Drill Bit Set is engineered for professionals and serious hobbyists who demand reliable thread creation and repair across a wide range of materials. Featuring a 1/4‑36 UNS 2B tap made from premium 6542 high‑speed steel and a matching 5.5 mm spiral drill bit forged from M35 5% cobalt HSS‑CO alloy, this kit delivers exceptional hardness, toughness, and wear resistance. The tap’s square shank (4.9 mm) provides a secure grip in tapping machines, while the spear‑point tip initiates clean entry and reduces the risk of breakage. The drill bit’s sharp spiral flutes promote fast chip removal, ensuring smooth hole preparation before tapping. Compact dimensions (3.58 × 2.48 × 0.67 in) and a lightweight design (1.23 oz) make storage and handling effortless, while the uncoated finish offers versatility on aluminum, iron, plastic, and other substrates.

Usage

This set excels in a variety of environments, from industrial workshops to home garages. Use the drill bit to create a precise 5.5 mm pilot hole, then follow with the 1/4‑36 tap to form internal threads for machine screws, bolts, and fasteners. The tool is compatible with manual tapping rigs, CNC machines, and standard drilling equipment, making it suitable for repairing damaged threads on stainless steel, cast iron, copper, and even engineering plastics. Its design accommodates both high‑speed production runs and low‑volume custom projects, delivering consistent results whether you are rebuilding a piece of equipment or fabricating a new component.

Why Choose Us

CoCud stands for precision and durability. Each tap undergoes rigorous heat‑treatment to achieve a 2B accuracy grade, guaranteeing uniform thread geometry and reduced wear over thousands of cycles. The drill bit’s cobalt‑enhanced alloy resists deformation at elevated temperatures, extending tool life even under demanding conditions. Our quality assurance process includes dimensional inspection and performance testing, ensuring every set meets exacting standards before it reaches you. Additionally, CoCud provides responsive technical support and a straightforward warranty, giving you confidence that your investment is protected.

Key Features

• High‑speed steel tap delivers consistent 1/4‑36 thread geometry for reliable fastening.
• Spiral drill bit with cobalt alloy ensures rapid chip evacuation and long tool life.
• Square shank design offers secure clamping in tapping and drilling machines.
• Versatile across steel, aluminum, plastic, and cast iron for broad application range.
• CoCud customer support and warranty provide peace of mind after purchase.

FAQ

What material should I use as a lubricant?

Applying a light cutting oil or a dedicated tapping lubricant reduces friction, extends tool life, and improves thread finish, especially on harder metals like stainless steel.

Can I use this set on a CNC machine?

Yes, the square shank and precise dimensions make the tap and drill bit compatible with CNC tapping and drilling heads for automated production.

How do I determine the correct drill size for this tap?

The recommended pilot hole diameter is 5.5 mm, which matches the drill bit included in the set. Using this size ensures optimal thread engagement and strength.

What is the warranty coverage?

CoCud offers a one‑year limited warranty covering manufacturing defects. Contact our support team for replacement or repair assistance.

Is this set suitable for plastic materials?

Absolutely. The sharp spear‑point tip and controlled chip removal work well on engineering plastics, providing clean threads without cracking.