CNBTR 20PCS Diamond Coated Hole Drill Bit 1.5mm Tools Punching Tool Diamond Drill Bits

• Product Function: Jade agate, jade pearl shell,punching drilling drill bit, crystal carving grinding head
• Usage: It is necessary to drain water for cooling, such as dry drills.
• The diamond on the tool head will become graphitized due to overheating, which will quickly wear and tear it off Light pressure feeding.
• Diamond tools rely on grinding to process workpieces. Excessive force makes it difficult to remove grinding powder, and tools (especially small tools) are also prone to quality deterioration
• If you have any question about the product, feel free to contact the CNBTR Service and we will try our best to give you a satisfactory answer.

Specifications: Material: Steel & Diamond Color: Silver Brand Name: CNBTR Shank diameter: 2.35mm(3/32") Head diameter: 1.5mm/0.06" Sand length: 17mm/0.67" Overall length: 45mm/1.77" Weight: 20 g Features: 1. Product Function: Jade agate, jade pearl shell,punching drilling drill bit, crystal carving grinding head 2. Usage: It is necessary to drain water for cooling, such as dry drills. 3. The diamond on the tool head will become graphitized due to overheating, which will quickly wear and tear it off Light pressure feeding. 4. Diamond tools rely on grinding to process workpieces. Excessive force makes it difficult to remove grinding powder, and tools (especially small tools) are also prone to quality deterioration 5. If you have any question about the product, feel free to contact the CNBTR Service and we will try our best to give you a satisfactory answer. Package Content: 20 x Diamond Coated Hole Drill Bits The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance.