Classification of Lathe Tools

The single point lathe tools are classified as following :

 (a)       According to the direction of feed :

• Right hand tools - fed from right to left.
• Left hand tools - fed from left to right.

(b)        According to the form of the point :

• Straight shank - when viewed from tool tip with straight axis.
• Bent shank tools: when viewed from top the tools, carry their axes as bent towards right or left near the face.

 (c)       According to the purpose :

Depending on purpose of applications the tools can be classified as turning, facing, threading, boring, parting off, grooving, forming, chamfering tool, etc.

 (d)      According to the method of manufacturing:

• Forged or Solid Tool: Tools are forged to the required shape in a single piece.
• Tipped Tool : These consists of HSS, cemented carbide or ceramic tip, brazed or mechanically held on a carbon steel shank or clamped mechanically onto specially made tool holders.

                    Figure 8(a): Tools Used for External Surfaces

  Figure 8(b): Tools Used for Internal Surfaces