Product parameters:

• Brand: o extension
• Model: 0.8-2.5
• Categories: straight shank twist drill
• Material: PCD
• Blade diameter: 1
• Blade length: 1
• Length: 36
• Shank diameter: 2
• Import: no
• Standard: standard parts
• Customized processing: Yes
• Specifications (diameter * length): 0.8MM 26MM, 1.0MM 28MM, 1.2MM 30MM, 1.5MM 36MM, 2.0MM 42MM, 2.5MM 55MM, 3MM 52MM

Product description: high-speed bench drill, drill, electric grinder machines and drilling machines and other equipment. Emerald, Onyx, pebbles, and jade, Sapphire materials drill drill processing of precious stones such as jade.

Note:

1. when drilling, it is necessary to exert appropriate pressure on bit parts for water cooling and, don't overexert or drill easily broken or deformed.

2. when drilling, drilling needles are often broken or deformed, it is normal, mostly unskilled operation led to more action to improve the situation.

3. in addition, when using a high-speed drill needle drill, speed, the higher the better.

4. If you need to better use the drilled needle can be used with the hollow sleeve, better results.

Notice for use:

1, drilled to drop (or the stone in water) cooling needles must flow into the drilled needle! Spray of water into the water to spray around, that represents a normal needle!

2, not with 1KG force pressing down the needle, because thinner! Too much force will break the needle!

3, chickens Peck-m is recommended under the needle, playing time and then raise needle, then press!

4, non-stationary machines (such as an electric drill, electric mill, and mill, and so on) to consider the possibility of holding the first! For non-stationary machines cannot ensure the vertical downward force levels, deep clamping lever as far as possible! Needle so as not to shake!

5, non-stationary machines (such as an electric drill, electric mill, and mill) rate should not exceed 6000 RPM! Because of high speed, centrifugal force will shake and bend pin!