Kolvoii Pocket Hole Jig – Adjustable Drill Guide for 1/2 inch to 3-1/8 inch Wood Thickness

Meet the Kolvoii Pocket Hole Jig

Designed for woodworkers who value clean, hidden joints and predictable results, the Kolvoii Pocket Hole Jig supports boards from 1/2 inch to 3-1/8 inch in thickness (12-82 mm). Its steel and aluminum housing meets a precision standard you can feel at the bench, with smooth, deliberate movements and a dependable click as guides align for each cut.

The jig brings a built-in measuring system that runs from 1/2 inch to 1-1/2 inch, with clear marks to help you locate holes quickly and accurately. The block itself offers three fixed spacings—0.6 in, 0.8 in, and 1.4 in—so you can set up without extra marking or readjustment during a session.

Two jigs in one, with a slider holder

When you’re working with long or thick stock, the included portable slider holder effectively gives you a second setup without swapping the guide block. This dual functionality helps you tackle a wider range of thicknesses and angles with the same core tool.

Durable, precise engineering you can rely on

The Kolvoii jig is built for longevity: CNC-machined from steel and aluminum for tight tolerances, a stainless steel extension rod adds support on longer runs, and hardened steel drilling sleeves paired with high-speed steel 3/8 inch drill bits deliver repeatable performance across projects.

Everything you need in one complete kit

The kit goes beyond the core jig to keep you ready for real-world projects:

• Pocket hole jig
• L square driver bits, 6 in and 2.5 in
• Pocket-hole screws x 10 and pocket-hole plugs x 10
• Slider holder and 3/8 in HSS drill bits x 2
• Stop collars x 2, hex wrenches x 2
• Tailor-made carrying case

Key benefits at a glance

• Adjustable for wood thickness from 1/2 in to 3-1/8 in
• Built-in measuring system for quick hole placement
• Three fixed spacings: 0.6 in, 0.8 in, 1.4 in
• Two-in-one capability with the slider holder
• Durable, CNC-machined construction with hardened sleeves

Real-world use and outcomes

Imagine clean, hidden fastenings on cabinets, bookshelves, desks, or DIY projects where a tidy finish matters. The Kolvoii system presents possibilities for precise joints and solid assemblies, without making promises—your results depend on technique, setup, and material.

User-friendly by design

Compact and organized, this jig supports a smooth workflow with quick setup and repeatable layouts. If you value neat joints, stable guidance, and a tool that respects your time, Kolvoii offers a compelling option for the workshop.