SNAP 18 Module

Overview

The SNAP 18 Module by HEULE is a compact chamfering module that attaches directly to your existing drill body, allowing you to perform both drilling and chamfering in a single operation. By combining two processes into one pass, you eliminate extra tool changes and reduce cycle times — all without rotating the workpiece.

Designed for drill bodies starting at Ø 18.0 mm, the SNAP 18 Module's small footprint (16.0 x 3.5 x 5.0 mm) allows it to be mounted close to the drill head, minimizing traverse distances and enabling longer drilling depths.

Key Benefits

• Two operations in one pass — drill and chamfer both the front and back edges of a bore simultaneously
• Fewer tools, fewer steps — reduce tooling inventory and streamline your process
• Compact design — install close to the drill head to reduce traverse distances and chip interference
• Flexible blade options — blades available in various coatings to suit different workpiece materials, and can be exchanged quickly with the assembly tool
• Handles casting tolerances — the blade automatically retracts when the target chamfer size is reached, delivering consistent results even on imprecise workpieces like castings

Specifications

How It Works

The SNAP 18 Module is mounted in a pocket machined into your existing drill body (not compatible with solid carbide drills). During the drilling feed stroke, the integrated module chamfers the front edge of the bore. When the preset chamfer depth is reached, the blade automatically retracts radially into the tool body. As the drill retracts, a spring-loaded control bolt returns the blade to its working position, allowing it to machine the chamfer on the back edge of the bore on the way out — all in one uninterrupted cycle.

For even higher feed rates, two modules can be integrated into a single drill body.

Construction

The module is secured to the drill body with a single fixing screw and consists of just a few wearing parts:

1. Blade
2. Control bolt
3. Pressure spring
4. Tool body
5. Locking bolt
6. Fixing screw