Driving and boring tools

Driving Tools

Driving tools are used to fix nails and screws into wooden and metal materials. Nails are the iron material with a flat head, smooth stem and sharp end. Screws look like nails but they have turned or twisted stem. Screws are driven into wood with screwdrivers while nails are driven into wood and metals with the use of hammers. Hammers are driving tools that have two parts – a head, which is made of iron and a wooden handle. There are five types of hammers named according to the shape of the head. They are;

1. Ball peen hammer.
2. Straight peen hammer
3. Cross peen hammer
4. Planishing hammer
5. Blocking head hammer
6. Upholstery hammer

(i) Straight-peen hammer is used for riveting while other end is used for shaping sheet metals.

(ii) Ball-peen hammer is used for general purposes.

(iii) Blocking head hammer has polished faces. It is used for shaping sheet metal.

(iv) Cross-peen hammer is used for drawing down and riveting.

(v) Planishing hammer is used by panel beaters for finishing.

(vi) Upholstery hammer is used for Upholstery work having one that is usually magnetic with tacks(short light nails) used in furniture

Driving tools also include mallets. Mallets are soft-faced hammers, as shown in the figure below

Screwdrivers

Screwdrivers are also driving tools and they have different shapes and sizes.  They are used to drive screw in and out of wood or metals. They have a long blade with a tip that can fit into the slots (grooves) in the head of the screw with either wooden or plastic handle.

1. Flat screwdriver used for screw having only one line slot on the head.
2. Star screwdriver is used for screws having a star opening on the head
3. Offset screwdriver is used whenever a straight screwdriver cannot be used.
4. Allen screwdriver is used for driving in or removing screws which have a hexagonal or square slot in their head.

EVALUATION

1. What are driving tools?
2. Mention and explain two types of hammer.
3. What are screwdrivers?