NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total 1/8 to 7/8", 3 bits 1/4" Quick Change Hex auspowers_batchsix excellent contamination exclusion

excellent contamination exclusion

and GND is ground wire

Featuring special ink formulation

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NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total 1/8 to 7/8", 3 bits 1/4" Quick Change Hex auspowers_batchsix excellent contamination exclusionNEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total Each step drill bit manufactured by NEIKO comes with precision manufacturing and is built with high grade high speed steel. Our step bits, or known as unibits, come with a titanium coating that promote the strength and cutting power of each of these drill bits. In this 3