Tool for removing broken screws and other fasteners with minimal damage to wood
Re-useable, durable tools made of spring steel, designed to back out all types of wood screws when the heads have broken off
5 piece set will back out the stubs of broken wood screws from #4 to #14, regardless of metal type
Insert an UNSCREW-UMSTM in an electric drill. Run it in reverse. The stub guides the tool as it cuts down the outside of the stub
UNSCREW-UMSTM cut mostly metal (and some wood) expanding as they go until they grip the stub securely and back it out

Technical Details

Product Details

Package Dimensions
Width : 4.29 inch
Height : 1.26 inch
Length : 5.43 inch

Shipping Weight: 1.44 ounce (View shipping rates and policies)

ASIN : B06WLM8K5T

Product Description

TODAY ONLY! 25% off for Cyber Monday. Normally $40! Buy today and Save! UNSCREW-UMSTM are designed to back out broken screws and remove other fasteners with minimal damage to the surrounding wood. Often the broken screw can be replaced with the same-sized screw. Sometimes, a longer and/or thicker screw may be needed, especially if structural strength is important. On rare occasions, the hole must be epoxied or plugged and redrilled. The important thing is that something can be done because the old screw is gone. The set includes 5 standard length UNSCREW-UMSTM sizes 1/8'' to 1/4'' 1/8'', 5/32'', 3/16'', 7/32'' and 1/4''. All are the standard 2'' length. Handles screw sizes #4 to #12, the most common household screws. How do UNSCREW-UMSTM work? Choose an UNSCREW-UMSTM which is a little too small to fit comfortably outside the shank of the screw. The UNSCREW-UMSTM is tightened into a bit brace or a variable-speed drill (moderate to heavy duty cordless is fine). THE DRILL IS RUN IN REVERSE. The UNSCREW-UMSTM uses the broken screw as a guide. Wooden boat builder Tom Jannke invented UNSCREW-UMSTM in the 1980s. Later, he retired and began making and distributing UNSCREW-UMSTM to craftsmen all over the world. Thirty years later this simple tool continues to be an essential piece in every wooden boat builder''s toolbox.