Feature

●Product Name:Lapidary Diamond Drill Bits, Gem Drilling Tools, Drilling Rocks for Jewelry.
●Hole Diameter:40mm, Internal Diameter:38.5mm, Shank Diameter:10mm.
●Rim Thickness:0.6mm, Total Length:55mm, Drilling depth:22mm, Quantity:1 Piece.
●It has held up extremely well and drilling just about any kind of rock, from the very soft Petoskey Stone fossils to hard jasper and agate of precious materials Especially suitable for use on hard lapidary materials like agate, jasper, petrified wood and geodes.
●The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications.

[Hole Diameter 55mm]




[Hole Diameter 78mm]




[Hole Diameter 54mm]




[Hole Diameter 79mm]




[Hole Diameter 53mm]




[Hole Diameter 52mm]




[Hole Diameter 59mm]




[Hole Diameter 70mm]




[Hole Diameter 58mm]




[Hole Diameter 75mm]




[Hole Diameter 57mm]




[Hole Diameter 76mm]




[Hole Diameter 56mm]




[Hole Diameter 77mm]




[Hole Diameter 73mm]




[Hole Diameter 72mm]




[Hole Diameter 51mm]




[Hole Diameter 50mm]




[Hole Diameter 49mm]




[Hole Diameter 44mm]




[Hole Diameter 61mm]




[Hole Diameter 43mm]




[Hole Diameter 63mm]




[Hole Diameter 42mm]




[Hole Diameter 65mm]




[Hole Diameter 41mm]




[Hole Diameter 48mm]




[Hole Diameter 47mm]




[Hole Diameter 46mm]




[Hole Diameter 45mm]




[Hole Diameter 66mm]




[Hole Diameter 81mm]




[Hole Diameter 60mm]





Description

40mm Lapidary Ultra-thin Diamond Coated Drill Bit Hole Saw 0.6-0.8 mm Rim Save Materials for Jasper
Model: Diamond Hole Saw Drill Bit
Type: Hole Cutter
Quantity: 1 Piece
Please choose from the drop down menu which option best qualifies your need. Available External Diameter as below:
Specifications:40mm (1-9/16 inch)
External Diameter:40mm
Internal Diameter:38.5mm
Shank Diameter:10mm
Rim Thickness:0.6mm
Total Length:55mm
Drilling depth:22mm
Product Description
1. This diamond drill bit will perform well on any kind of rock.
2. Apply to drilling the glass of watch, optical glass and super-thin glass;
3. Used in ceramics and glass (architecture glass, automobile glass, LCD glass, quartz glass, ultra-thin glass, etc.) widely.
4. Water or coolant must always be used to cool and lubricate the tip.
Product performance and advantages:
Hole drilling high precision: neat, smooth, no broken edge.
High drilling efficiency: Sharp, improve the drilling speed, Drill a Holes In Seconds
Quick Tips
1. Please add water for coolant and drill slowly
2. Start drill at 45 Degree to surface and align to 90 Degree as hole forms
3. Never use drills while machine is in hammer action.
4. Holes Require No Futher Work As Cutting Is Clean
5. Just fill with ordinary electric drill or rotary tool, Works better with a electric drill ( Excluding in this item )
Regular Air postage from China to Worldwide is FREE and takes 10-35 days delivery to your home
We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly.
We Can List Any Size & Amount Of This Product: Hole Diameter from 3mm - 100mm