HSS Asme Extra Long Drill Bit

Short Description:

This is a high-speed steel twist drill bit suitable for processing through holes and center holes in alloy steel, mild steel, non-ferrous metals, cast steel, cast iron, plastic, wood and other materials. While extra-long drills can be used on stationary machines, they are typically used on handheld drills to get into hard-to-reach places that working-length drills cannot. This drill is suitable for drilling holes that cannot be made with a dresser or taper drill, making it one of the most versatile tools. High-speed steel drill bits are suitable for most general applications, offering a combination of hardness and toughness for wear resistance.

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Product Detail

Product Tags

Product Size

D D L2 L1

1/4

2500

9/13

12/18

7/16

4375

9/13

12/18

5/8

.6250

9/13

12/18

5/16

.3125

9/13

12/18

1/2

5000

9/13

12/18

3/8

3750

9/13

12/18

9/16

5625

9/13

12/18

Product Show

In addition to increasing lubricity, the black oxide treatment also creates small pockets on the tool surface that are able to hold coolant near the cutting edge for longer periods of time. As a result of the black oxide surface treatment on high-speed steel, the tool is enhanced in heat resistance and extended in its tool life, with a thinr oxide layer than that typically used to identify cobalt steel tools; its performance is similar to that of uncoated tools. It is possible to utilize round shanks with many different types of toolholders.

Drills with a split point of 118 or 135 degrees mean less force is required to drill into the workpiece, preventing the drill from slipping on the surface of the material, self-centering and reducing the thrust required to drill. This drill has a unique design with a self-centering tip that prevents slipping, making work faster and easier. Increased drill speed means less heat is generated and more wear is achieved, extending the life of the drill. The cutting edge remains sharp and withstands continuous use. When operating in a counterclockwise direction (right-hand cutting), helical-fluted cutters expel chips upward through the cut to reduce clogging.