Carbide-Tipped Core Drill/ High-Speed Steel Drill/ HSS Twist Drills Set

• Customized: Non-Customized
• Standard: DIN, JIS, AISI, API
• Length: Taper-length
• Type: Countersink Drill Bit
• Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling
• Bit Material: Alloy Steel, Tungsten Carbide Steel, Diamond, High
• Model NO.: 25 50 various sizes
• Product Specification: Please Consult Customer Service
• Bit Specification: 13mm-230mm
• Transport Package: Export Packing
• Specification: 6mm-100mm 20 22
• Trademark: SANJU
• Origin: Hebei
• HS Code: 8205100000
• Production Capacity: 50000

Product Description

The cutting edge is made of high grade diamond electroplating material, especially sharp and high wear resistance.

What are the classifications of hole openers?
1. Alloy hole opener. 
2. High speed steel hole opener(HSS). 
 3. Bimetal hole opener.

Precautions for the use of the hole opener

1. Wear eye protection glasses when using;

2. Ensure that the drilling material is fastened to avoid rotation;

3, refer to the tachometer, different sizes, different materials to adjust the drilling speed.
4, when opening the hole should be perpendicular to the surface of the opened material, remember to tilt, prevent the cutting edge due to high-speed rotation crack;

5, drilling thick plate, pipeline and other materials need to take off the spring, can be taken off the spring, but must not take off the drill, take off the drill, when the high speed of the drill, the hole opener is not positioned, easy to run away, very dangerous.

Mainly used for drilling steel components. This drill selects high quality high-speed steel, effectively improves the wear resistance of the cutting edge, achieves multi-layer cutting geometry, improves the effect of aligning and chip removal, can meet the performance of multiple types of products, can meet the drilling needs of different materials.