1. CREU Y MEDRYDD DRILIO CREATING THE DRILL GAUGE

3. Cael defnydd bar aliwminiwm fflat 40mm x 5mm A gorchuddio gyda Glas Marcio Obtain material aluminium flat bar 40mm x 5mm And cover with marking blue

4. Marcio allan yr hyd 100mm Mark out the length 100mm Caliper Fernier Vernier Caliper

5. Marcio allan yr hyd 100mm Mark out the length 100mm Sgwar a screibar Square and Scriber

6. Torri i’r hyd a sgwario Cut to length and square Haclif, Ffeils, Sgwar Hacksaw, Files,Square

7. Marcio allan lleoliad y tyllau Mark out hole locations Mesurydd Uchder, Plat Arwyneb a Plat Ongl Height Gauge, Surface Plate and Angle Plate

8. Marcio allan lleoliad y tyllau Mark out hole locations Caliperau Jenni, Mesurydd, Sgwar a Screibar Jenny Calipers, Rule, Square and Scriber

9. Marcio allan lleoliad y tyllau Mark out hole locations Caliperau Fernier, Sgwar a Screibar Vernier Calipers, Square and Scriber

10. Marcio allan lleoliad y tyllau Mark out hole locations Pwns Canoli, Morthwyl pen gron Centre Punch, Ball Pein Hammer

11. DRILIO / DRILLING Gosod yn y feis Place in vice Feis Beiriant, Dril Piler Machine Vice, Pillar Drill

12. Drilio Tyllau 1,2,3,4 a 5 Drill holes 1,2,3,4 and 5 Driliau /Drills 1mm 2mm 3mm 4mm 5mm

13. Defnyddio y dril 5mm i greu tyllau peilot yn y gweddill Use 5mm drill to create pilot holes for the rest Driliau /Drills 5mm

14. Drilio Tyllau 6,7,8,9,1 0,11,12, ( 13 opsiwn ) Drill holes 6,7,8,9, 10,11,12 ( 13 option ) Driliau /Drills 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm

15. SWARF ! GLANHAU / TIDY UP

16. Marcio allan y radiws ar y corneli Marc out radius on corners Cwmpas mesur Dividers

17. Ffeilio y radiws ar y corneli File radius on corners Ffeiliau bras a llyfn Feis beirianneg Rough and smooth files Engineering vice

18. Glanhau y gwaith Clean work Mudwr Glas Marcio Gwlan Dur Engineering Blue Remover Steel Wool

19. Marcio y tyllau Mark the holes Stampiau rhifau a llythrennau Morthwyl Pen Gron Number and letter stamps Ball Pein Hammer