Module 2: Turning Tools & Sharpening¶

Overview¶

This module focuses on the geometry, function, and maintenance of wood turning tools. Students will understand the purpose of each tool type (bowl gouge, spindle gouge, skew, parting tool, roughing gouge, detail tools), how to recognize dull edges, and proper sharpening techniques using whetstones, grinders, or commercial jigs. Proper tool sharpness is non-negotiable; dull tools require excessive force, produce poor finish, and are dangerous.

Learning Objectives¶

Identify all standard turning tools by sight and by function
Understand tool geometry (cutting angle, bevel angle, flute shape)
Recognize a sharp edge vs. a dull edge
Perform sharpening using a grinder or whetstone
Maintain correct bevel angle during sharpening
Understand the relationship between tool geometry and cutting behavior

Module Structure¶

Slide 1: Turning Tool Types & Geometry
Slide 2: Cutting Edge Analysis & Dullness Recognition
Slide 3: Sharpening Equipment & Techniques
Slide 4: Bevel Angle & Correct Sharpening Angle
Slide 5: Tool Maintenance & Storage

Assessment¶

Identification: Recognize each tool type and state its primary use
Sharpening demonstration: Sharpen a dull tool to acceptable edge quality
Edge inspection: Visual and tactile assessment of sharpness
Hands-on: Verify correct bevel angle using a reference

Time Allocation¶

Instructor Delivery: 2 hours
Hands-on Sharpening Practice: 2 hours
Assessment & Verification: 0.5 hours
Total Module Time: 4.5 hours

Prerequisites¶

Module 1: Lathe Anatomy (basic familiarity with lathe components)

Resources¶

Complete set of turning tools (roughing gouge, spindle gouge, bowl gouge, skew, parting tool, detail tools)
Grinder or whetstone with appropriate abrasive
Sharpening jigs (optional; e.g., Wolverine or similar)
Dull tool samples for practice sharpening
Safety glasses and dust mask for grinding
Tool geometry reference diagrams
Bevel angle gauge or protractor

Module Version: 1.0 Created: 2026-03-15