High qualityThe drill chuck wrench is made of high quality steel material, durable, not easy to damage, good performance and long service life. Feature The 4-in-1 drill chuck wrench is a tool with 4 wrench sizes for tightening and loosening the chuck. It is compact, easy to carry and store, and convenient to use. ApplicationThis 4-way universal chuck can provide a perfect replacement for lost or damaged chuck keys. It is very practical in life and suitable for most drills and power tools. Product Parameters The size of the 4-in-1 tension wrench is approx. 74 * 38mm / 2.9 * 1.5 inch, the outer length is about 13mm/0.5 inch and the middle length is about 7.4mm/0.3 inch. Quality AssuranceThis 4 in 1 drill tool is under strict quality control and standard requirements and has a high safety factor so that it can be used reliably.