Loboo Idea 6 Pieces/Set Step Drill Bit Set & Automatic Center Punch, Double Cutting Blades, High Speed Steel, Short Length Drill Bits Set of 5 pcs, Total 50 Sizes with Aluminum Case

• HSS - High Speed Steel Black and Gold, resists corrosion, ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
• Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for metal/wood/plastic countersunk. Suitable for Home DIY, and General Building/Engineering Use.
• Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation.
• Easy Organizing - A drill bits holder with size index is included in the metal kit for easy storage and organizing without fear of it falling out.
• Set Includes - The drill bits set includes five common sizes for versatility, can fit the majority of brands currently on the market.

Loboo Idea 6 Pieces/Set Step Drill Bit Set & Automatic Center Punch, Double Cutting Blades, High Speed Steel, Short Length Drill Bits Set of 5 pcs, Total 50 Sizes with Aluminum Case ▲▲The professional manufacturer of titanium cobalt drill bits, countersink drill bits, spade drill bits and kinds of cutting tools. ▲▲Whether your requirements are for one drill bit or one million we will be happy to fulfill your needs with excellent service and high-quality products. ◆◆◆◆Size:◆◆◆◆ ★★#1: 1/4" to 1-3/8" 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8") ★★#2: 3/16" to 7/8" 12 Steps (3/16'', 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16",7/8") ★★#3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4") ★★#4: 1/8" to 1/2" 13 Steps (1/8", 5/32", 3/16'', 7/32", 1/4'', 9/32", 5/16", 11/32", 3/8'', 13/32", 7/16'', 15/32", 1/2'') ★★#5: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'') ▲▲Maintenance Tips ▲▲ ▲ 1. Not compatible with hammer drill. ▲2. Please do not set drilling speed too high to avoid damages to cutting edge. ▲3. It is recommended to oil the bit before every use. ▲ 4. Please drill a smaller hole to make drilling smoother. ▲5. The metal sheet on which you want to drill should not exceed 0.38 in. in thickness. Package List ●●6 x Step Cone Drill Bit Titanium Hole Cutter Set ●●1 x Automatic Center Punch