ABANA National Curriculum 2.10 - Drifts

2.10. - DRIFTS
2.10.1. - Student will understand the manufacture and use of a drift in making holes of a given size and shape.
2.10.2. - A square and diamond drift are to be made to compliment the round drift made in Level I.
2.10.3. - Drift can be made from mild steel or a higher-grade steel alloy
2.10.4. - Drifts must be over-size to allow for ‘off-the-shelf’ ½-inch square bar- stock to pass through the drifted holes when cold.
2.10.5. - Square drift to exhibit a round taper to the working end
2.10.6. - Diamond drift to exhibit a slot-punch or slitting chisel taper to the working end
Filmed at Pioneer Farms in Austin TX:
www.pioneerfarms.org/