√ 3Pcs spiral step drill bits, 4-12/4-20/4-32mm 29Sizes,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' Hex shaft drives are suitable for all kinds of power drills.

Technical Details

Product Details

Package Dimensions
Width : 3.14 inch
Height : 1.57 inch
Length : 4.7 inch

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

ASIN : B06Y43GV3X