Comparing the Old Jig Style Drill Technique to the New Bubble Style

How does the Sentry Safety Drill Guide work?
The guide is a bubble level with 3 positions.
When you are ready to drill line up the bubble on 1 of the 3
positions and begin to drill. As you drill stop and check to
make sure your bubble is still in position, make your adjustments,
and continue on. Because you hold the drill at the correct angle
instead of through a jig; there is room for correction during
drilling and you check multiple times through the drilling of
each hole for correction - resulting in a more accurate hole.
This start stop method and instant adjustment has great
advantages over the jig method which has to be re-leveled
from any movement (shifting during drilling, vibrations, etc.)

Category:

Howto & Style

Tags:

• Sentry Safety Pool Fence Drill
• Drill Comparison
• Mesh Fence
• Drill Concrete