Step Drill Bits, 5PCS HSS Titanium Step Drill Bit Set | 50 Sizes High Speed Steel Step Bits for with Aluminum Case

Warm Tips: To extend the service life of the step drill bit and facilitate drilling, it is best to add oil before using it. When working with a step drill bit, you need to add water to keep the temperature down. Specification: #5 Bit：1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8" #4 Bit：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 Bit：1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" #2 Bit：3/16", 1/4", 5/16", 3/8", 7/16", 1/2" #1 Bit：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" 118° X-type Split Point - Increases cutting speed with self-centering and prevents walking. Two-flute Design - a faster and smoother cutting, allows particles escape easily. step drill bit Tri-flatted shank will not spin inside the chunk, compatible with different types of drill machines effectively. Application - suitable for sheet metal, plastic, aluminum alloy, copper, NOT recommended for high carbon steel, hard metal.

• HSS Titanium Coating: Thanks to the high speed steel material and titanium coating, the step drill has excellentsharpness and durability
• 118° bifurcation point tip and dual notch design: increases self-centering cutting speed, prevents walking, clearschips faster, and allows particles to escape easily
• 50 sizes, 5: The Step drill kit includes 5 standard pieces for a total of 50 sizes for versatility, enough to meet your Dlyneeds
• Scope of application: Suitable for plastic, aluminum, iron and other metal plate drilling (not recommended forstainless steel and wood, it is recommended to add coolant or water when drilling metal plate, the speed shouldnot be too high)
• Equipped with a neat box, making the use and storage of the drill more convenient