ILOVETOOL 4.5mm Diamond Gemstone Drill Bits for Jewelry Super-Thin Rim Pack of 10Pcs

10Pcs 4.5mm Lapidary Super-thin Diamond Coated Drill Bit Hole Saw 0.5mm Rim, Save Materials for Jasper Glass Model: Diamond Hole Saw Drill Bit Type: Hole Cutter Quantity:10 Pcs Hole Diameter:4.5mm Shank Diameter:4.2mm Rim Thickness:0.5mm Total Length:48mm Drilling Depth:20mm Product Description 1.The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications. 2.This diamond drill bit will perform well on drilling just about any kind of rock. 3.Apply to drilling the ceramics and glass widely. Product advantages Diamond drill bit very thin, can reduce material consumption maximize. Hole drilling high precision: The rim of drill bits are very smooth and thin to meet the most exacting faceting requirements. Neat, smooth, no broken edge. High drilling efficiency: Sharp, improve the drilling speed, Drill a Holes In Seconds Long service life: Super-thin drill bits are made of high quality fine diamond particles, it’s more durable than common diamond bit! Drilling hole after a period of time, We recommend that you using the drill bit to drill white corundum grinding wheel for several times, the diamond particles on the front end of the drill will appear again, and then you can continue to use the drill bit. Quick Tips 1. Water or coolant must always be used to cool and lubricate the tip. 2. The bit is suitable for use in bench drill, electric drill or rotary tool, recommended to be used in bench drill. 3. Never use drills while machine is in hammer action. We Can List Any Size & Amount Of This Product: Hole Diameter from 3mm - 90mm

• Product Name:Lapidary Diamond Drill Bits, Small Jewelry Drill.
• Hole Diameter:4.5mm, Shank Diameter:4.2mm.
• Quantity:Total 10 Pcs, Total Length:48mm, Drilling Depth:20mm,Rim Thickness:0.5mm.
• The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications.
• The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications.