3Pcs 1 Set, 3-12/4-12/4-20mm 24Sizes,main material high speed steel, titanium coated high quality step drill bits.
Step drill, also known as stepped drill or pagoda drill, mainly for wood and steel drilling processing.More steps and dense make the hole smoother.
According to the need to process different diameter holes, you can achieve one-time processing of large holes, no need to replace the drill bit and positioning hole.
Double cutting blade design makes for cutting faster,automatic deburring from hole when drilling.
1/4'(6.35mm)Drive hex shaft drives are suitable for all brands of power drills.

Technical Details

Product Details

Package Dimensions
Width : 1.43 inch
Height : 1.2 inch
Length : 3.69 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B072M9K6NV