Step Drill Bit Set, 5 Pcs Titanium Coated High Speed Steel Step Drill Bits with 1 Pc Automatic Center Punch for Drilling Sheet Metal, DIY Project

• Premium Material: Industrial HSS made body and titanium nitride coating ensure maximum durability and sharpness.
• Excellent Features: The 118° split tip speeds up cutting while preventing angled walking away from center. Double-edge design provides smoother cutting with fast chip evacuation.
• Drilling Multiple Hole Sizes: The bit set includes 5 standard step bits that can replace 50 individual bits. Great drill bits for sheet metal, wood, and plastic. Suitable for home DIY, handyman, professionals.
• Automatic Center Punch: The punch delivers a high-impact strike when pressed against surface, S2 steel spring punch provide great accuracy and precision.
• Aluminum Storage Box: All drill bits are packed in a well-organized case for easy transport and storage.

Material: High Speed Steel Body, Titanium Coating Measurement System: Imperial Drill Bit Specification: 10-Step 3/8” Drill Bit from 1/4” to 1-3/8” 11-Step 3/8” Drill Bit from 3/16” to 7/8” 9-Step 3/8” Drill Bit from 1/4” to 3/4” 12-Step 1/4” Drill Bit from 1/8” to 1/2” 6-Step 1/4” Drill Bit from 3/16” to 1/2” Center Punch Specification: Thimble Hardness: HRC 58-62 Length: 5” Diameter: 0.5” Weight: 550g/1.21lbs (including the case) Package Includes: 5 x Step Drill Bits 1 x Center Punch