1/4" Keyhole Bit gauge Every graduation is chemically etched

Every graduation is chemically etched before being permanently laser engraved

When not in use

Router Lift II

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1/4" Keyhole Bit gauge Every graduation is chemically etched1 4"SH, 1 2"LD, 7 16"CL Product Description Originally designed to make decorative keyhole slots in boxes, these bits are more commonly used to add hanging slots to the back of projects. Just make sure the screws you are using to secure your project fit the bit design. The screw head should be smaller than the large diameter stated below, and screw shanks should be smaller than the small diameter. Model# 3052 Materials: Natural woods, composite woods