Drill Guide,30 45 90 Angled Drill Guide Jig with 2 Torpedo Level 4 Sizes Drill Hole Guide Jig Use on Flat Surfaces, Round Parts, and Corners Angled Straight Hole

1.Four Drill Sizes：3/8″(9.52mm), 5/16″(7.93mm), 1/4″(6.35) mm), 3/16″(4.76mm)
1.Four Drill Sizes：3/8″(9.52mm), 5/16″(7.93mm), 1/4″(6.35) mm), 3/16″(4.76mm)
2.Alloy Steel Material:Special nickel alloyed steel heat treated for durability.With black coating to prevent rust.120-day return and free replacement if your stair railing drill guide has any quality problem.
3.Three Drilling Angle:You can quickly drill accurate 30°/45°/90° angle holes for wooden stair railings and deck posts.
4.V-grooves：90° angle holes with Drill Guide allow for usage on corners and even cylindrical surfaces too.(When you use the 90° angle holes,the Non-slip feet holds the Drillblock in place while preventing both slipping and marring on wooden work pieces.)
5.Note:Recommend working with F clamp or C clamp for steadier and safer drilling Avoid drill guide shaking or falling while drilling.