MKBL Premium 5/ 3pcs HSS Cobalt Multiple Hole Step Drill Bit Set Tools

3PCS/SET with Pouch Description: 1. 3X HSS Step Cone Drill Titanium Coated Hole Cutter Bit Set 3-12 4-12/20 mm+Pouch 2. Size:4-12mm 4-20mm 3-12mm. 3. 100% brand new and Material: HSS Steel. 4. Ideal for using to cut holes in a variety of materials including steel brass wood plastic copper fibreglass and PVC etc. 5. 3Pcs HSS Drill Bit Set quality tool for jobs of all sizes. Packing Includes: 3 x HSS Steel Drill Bit 1 x Pouch ------------------------------------------------------------------------------------------- 5PCS/SET with Box Package included: 1 x 1/4-1-3/8 Step Drill 1 x 3/16-7/8 Step Drill 1 x 1/4-3/4 Step Drill 1 x 1/8-1/2 Step Drill 1 x 3/16-1/2 Step Drill 1 x Aluminum Box Drill Shank Diameter: 1/4-1-3/8 9mm 3/16-7/8 9mm 1/4-3/4 9mm 1/8-1/2 6mm 3/16-1/2 6mm Features: This set replaces 50 individual drill bits. Two-flute design gives you faster smoother cutting. 3-sided (TRI-FLAT) shank will not slip in your drill s chuck. Cobalt coated for smoother cooler cutting. SELF STARTING - No need for a pilot hole. Cobalt coated to reduce friction and run cooler. Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck. Automatically deburrs holes as you drill. Long Life True M2 high speed steel. Includes protective padded aluminum case. Package Size:15cmx10.5cmx4.2cm(LxWxH)