ODOMY 7 PCS High Speed Steel Step Drill Bit Set 50 Sizes Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch and Twist Drill Bit and Aluminum Case

Specification: Material: high speed steel, titanium coating. Size: Box Size: 15x13x4.2cm Twist drill size: 3mm Drill bit 1: 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, 1 inch, 1-1/8 inch, 1-1/4 Inches, 1-3/8 inches Drill bit 2: 3/16 inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, 9/16 inch, 5/8 inch, 11/16 inch, 3/ 4 inches, 13/16 inches, 7/8 inches Drill bit 3: 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, 9/16 inch, 5/8 inch, 11/16 inch, 3/4 inch Drill bit 4: 1/8 inch, 5/32 inch, 3/16 inch, 7/32 inch, 1/4 inch, 9/32 inch, 5/16 inch, 11/32 inch, 3/8 inch, 13/ 32 inches, 7/16 inches, 15/32 inches, 1/2 inches Drill bit 5: 3/16 inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch Feature: 1. Drills holes of various sizes without changing bits. 2. Minimal shocks and almost impossible to snap compared to conventional bits. 3. Prevents metal scurf from flying around for improved safety. Package Include: 5 x step drill bits 1 x 3mm twist drill 1 x automatic center punch 1 x aluminum box