What kind of wood is specified for the mallet head?

The head must be made from suitable seasoned hardwood such as Babul, Sal, Sissoo, or Bija, free from defects and with a moisture content not exceeding 12% (Clause 3.1).

What are the standard sizes available for caulking mallets?

The standard specifies three sizes: Size 1 (100 mm head dia), Size 2 (112 mm head dia), and Size 3 (125 mm head dia), as detailed in Table 1.

What is the specified standard for the wooden handle?

The wooden handle for the mallet must conform to the requirements laid down in IS 620 'General requirements for wooden tool handles' (Clause 3.2).

IS 6656

: 1986

caulking mallets

CurrentSpecializedSpecificationMaterials Science · Timber and Timber Stores

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This standard specifies the requirements for three sizes of caulking mallets used for caulking purposes, particularly in shipbuilding and plumbing. It covers the material (hardwood), dimensions, manufacturing, workmanship, finish, and marking.

caulking mallets

Quick Reference Values

Maximum timber moisture content12 percent

Head diameter (Size 1)100 mm

Head diameter (Size 2)112 mm

Head diameter (Size 3)125 mm

Handle length (all sizes)315 mm

Tolerance on dimensions (under 50mm)±1.0 mm

Tolerance on dimensions (over 50mm)±2.0 mm

Practical Notes

This standard has been withdrawn by BIS. It may be used for reference purposes but is no longer maintained.

The quality of the mallet depends heavily on the selection of seasoned hardwood as per IS 399 to prevent splitting.

The handle fitment is critical for safety and performance; it should comply with IS 620 for wooden tool handles.