9 PCS M35 Cobalt 4‑Flute Step Drill Bits, Hex Unibit with Center Punch

LTEWALT M35 Cobalt Steel Step Drill Bit Set Most budget step drills dull or break quickly after few metal holes. Our M35 titanium coating improves heat and abrasion resistance, greatly extend service life. Clear usage reminder: This set only works well on thin sheet metal, plastic, wood. Thick stainless steel / angle iron needs cutting fluid and low drill speed Full Kit Accessories 3 x M35 Cobalt Steel Step Bits: 1/8-1/2'', 1/4-3/4'', 3/16-7/8'' 5 x 90° Countersink Drill Bits 1 x Quick Change Hex Adapter 1 x Improved Spring Center Punch Practical Humanized Details 4 flute design speeds chip removal, smooth clean cutting without rough edges Self-centering split tip stops drill walking, save polishing time Non-slip hex shank stable under drilling pressure Deep permanent size engraving, no fading after long use Reinforced foam case protects all tools during delivery and storage Wide Application Ideal for home DIY, auto modification, RV wiring, electrical box renovation, furniture installation, PVC & 3D material processing. Perfect for handymen, electricians and hobby craftsmen. Package List 3 M35 Step Bits, 5 Countersink Bits, 1 Quick Adapter, 1 Center Punch

• 【Durable Upgrade M35 Cobalt Steel Drill Bits】Made of premium M35 Cobalt Steel with titanium coating, harder and more wear-resistant than regular bits. 118° split tip + 4 flute design delivers smooth, burr-free holes.Best for metal, aluminum, plastic and wood.
• 【Complete All-in-one Tool Kit】Contains 3 sizes M35 step bits, 5pcs 90° countersink bits, quick change hex adapter and upgraded automatic center punch. One set covers most hole expansion & countersink needs for DIY, auto wiring and electrical projects.
• 【Optimized Non-jamming Center Punch】Updated internal spring structure solves stuck issues. Provides clear indent marks on wood & thin metal, keeps drill from wandering without extra marking tools.
• 【Anti-slip Hex Shank & Clear Markings】3-flat hex shank locks firmly in drill chuck to prevent slipping. Deep laser-etched size labels never wear off, easy to control hole size and avoid over-drilling.
• 【Storage Case】Sturdy box with custom thick foam slots. Every tool has independent fixed position, avoids scratch and missing parts during transportation. Lightweight for toolbox storage.