DrillBlock - Hand-Held Drill Bit Drilling Guide Measurement System:Metric In addition to the warranty

In addition to the warranty

Stiff rubber sanding block is designed to hold a 1/4 sheet of sandpaper

rolled to form an inverted "U" shape for strength

95%) tool steel

DrillBlock - Hand-Held Drill Bit Drilling Guide Measurement System:Metric In addition to the warrantyThis Milescraft DrillBlock is a simple tool that allows you to drill straight holes every time. Inserted metal guides are held at tight tolerances in a resin frame to allow you to drill a hole 90 to any surface, centered on a round item or even directly into the corner of your project. Six common drill diameters: 1 8", 3 16", 1 4", 5 16", 3 8" and 1 2". Features: Use with a hand held drill to create straight holes every time V grooves on bottom align