Made of fine quality high speed steel, wear resistant, not easy to rust, has a long service life
Double groove design for faster and smoother cutting
Different specifications can meet different drilling requirements
The aluminum box can better accommodate and protect the drill bits
Suitable for workpiece with hardness is less than 25°, such as carbon steel, iron plate, aluminum plate, pvc plate, wood board and so on
This is a set of step drills made of high speed steel 4241. Different specifications can meet different drilling requirements. The aluminum box can better accommodate and protect the drill bits.<br>Features:<br>Made of fine quality high speed steel, wear resistant, not easy to rust, has a long service life.<br>Double groove design for faster and smoother cutting.<br>Different specifications can meet different drilling requirements.<br>The aluminum box can better accommodate and protect the drill bits.<br>Suitable for workpiece with hardness is less than 25°, such as carbon steel, iron plate, aluminum plate, pvc plate, wood board and so on.<br>Specifications:<br>Material: high speed steel 4241<br>Color: yellow<br>Quantity: 5pcs<br>Size:<br>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"<br>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"<br>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"<br>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"<br>3/16" to 1/2" (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"<br>Shank diameter:&nbsp;<br>1/4" to 1-3/8": 8mm / 0.3in<br>3/16" to 7/8": 8mm / 0.3in<br>1/4" to 3/4": 8mm / 0.3in<br>1/8" to 1/2": 6mm / 0.2in<br>3/16" to 1/2": 6mm / 0.2in<br>Package size: 150 * 110 * 40mm / 5.9 * 4.3 * 1.6in<br>Package weight: 480g / 1.1lb<br>Package list:<br>5 * Step Drill<br>1 * Aluminum Box