▲50 SIZES IN 5 & SPIRAL GROOVED DESIGN- the spiral spiral grooved includes 5 step drill bits, you can process 50 different kinds of holes with only 5 pieces; and the spiral grooved design provided better orientation and more smooth cutting for you
▲HIGH SPEED STEEL & TITANIUM COATING - high speed steel makes the step drill bit stronger and more durable;and the titanium coating ensures easily cut through steel sheets，aluminum sheets，copper & plastic & wood board and many other types of sheet metal easily, and the X-type opening design can facilitate the removal of cutting waste when drilling to keep the drill bit clean
▲AUTOMATIC CENTER PUNCH & PROTECTIVE ALUMINUM CASE - the center punch delivers an automatic, high-impact, spring-loaded strike through adjusting the cap; its brass body has a deeply knurled surface for nonslip control; with the carbide tipped bit, the center punch is 10 times stronger than normal one; and protective aluminum case to make the drills not easy to dull
▲THREE-SIDED SHANK & DOUBLE CUTTING BLADES - 3-sided shank design prevents slip in drill chuck; Double cutting blades and X-type openings design ensures a faster and smoother cutting; Provided with small pressure and the sets can cut through the wood, sheet metal, steel and other surfaces
▲WHAT YOU GET - Tacklife PSD4 spiral grooved step drill bit,Automatic Center Punch, Aluminum Case, User's Manual, 24 months warranty

Technical Details

Product Details

Package Dimensions
Width : 5.91 inch
Height : 1.89 inch
Length : 6.3 inch

Shipping Weight: 0.64 ounce (View shipping rates and policies)

ASIN : B0773N2CPQ