Drill Gauge

Work in date: 21/08/2012                                                                                                                      
List tools used and describe:

Center Punch: It is a hand tool used to produce a dimple in a workpiece (for example, a piece of metal).

Vice: A tail vice is mostly used in design technology, it holds your work-piece firmly.

Bastard File: A bastard file or a mill bastard file is a file whose teeth configuration is in between a rough or coarse file and a 'second cut' file.

Second Cut File: A second cut file is a grade or pitch finer than a bastard file and is used for cutting hard metals.

Pillar Drill: A pillar drill is a stationary style of drilling machine that can be mounted on a stand or bolted to the floor or workbench.

               

Scriber: A scriber is a hand tool used in metalworking to mark lines on workpieces, prior to machining. 

Engineer Protractor: Engineer's protractor is a general purpose tool used for the measuring / checking of angles.

Steel Rule: A ruler, sometimes called a rule or line gauge, is an instrument used in geometry, technical drawing, printing and engineering

Ball Pein Hammer: The type most commonly used is the ball pein hammer, which has a flat striking face and a ball-shaped end (call the pein). Hammer heads are made from medium carbon steel. The two ends must be hardened and tempered, the centre of the head with the eye being left soft. It is specified according to its weight.

Engineers try-square: It is composed of two parts, the stock and the blade. They are usually made from bright mild steel with the blade being hardened and tempered so that it resists damage.

Engineer's blue: It is a highly pigmented paste used to assist in the mating of two or more components.

Jenny Caliper: A jenny caliper, which features a pair of arms connected by a circular hinge at one end.

Hacksaw: It is a fine-tooth saw with a blade held under tension in a frame, used for cutting materials such as metal or plastics.

Abrasive paper: It is used to remove small surfaces from materials.

Describe the process used in completing the task:

• Select a steel metal as exercise target, then clean this material and check size;
• One side use engineers blue ink to brush for marking;
• Square bottom and top edge using engineers protractor;
• Stamp bench number on back face;
• Mark out holes, lightly center punch using scriber;
• There are five holes on the metal, and each one has different size: 4, 6, 8, 10, and 12mm, 
• Check top and bottom size length if correct.

Work in date: 22/08/2012  

Describe the process used in completing the task:

• Using hacksaw cut unnecessary parts, then use rough and smooth files to polish the corners of the steels.
• File to shape ensuring: Point X is sharp not rounded, point Y is clear not undercut, 24mm width is parallel with max variation of ±0.05mm,
• Keep top corner is 45 degree.
• Number stamp hole 4, 6, 8, 10, and 12mm.
• Using pillar drill to drill six different size holes.
• Using abrasive paper polish the steel.

Potential hazards and injuries:
Metal splinter, Dust particles,Hot Metal, Sparks, Noise, Sharp edges and burrs, Hands and eye injuries

List some photos from workshop: