10 шт. 3/16 "дюймов 4.5 мм гранильной супер-тонкий алмазный Бурильные долото

10Pcs 3/16" inch (4.5 mm) Lapidary Super-thin Diamond Coated Drill Bit Hole Saw 0.5 mm Rim Save Materials for Jasper Glass
Item specifics      

Model: Diamond Hole Saw Drill Bit     

Type:   Hole Cutter

Hole Diameter:       4.5 mm(close to 3/16" inch)

Shank Diameter:    4 mm

Total Length:          46 mm

Drill depth:             20 mm depth

Rim Thickness:     only 0.5 mm

Quantity:               10 Pcs

Product Description

1. This diamond drill bit will perform well on any kind of rock.

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.

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:

Good Performance and long life: Super-thin drill bits are made of high quality fine diamond plating, it's more durable than common diamond bit!
The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications. Excellent for making clean and accurate hole on brittle materials , such as agate, jasper, glass, tile, granite and marble
The super-thin Electroplated diamond drill bits are very smooth and thin to meet the most exacting faceting requirements. 
They can offers a very good cost effective option for those that want very thin kerfs.

Diamond drill bit very thin, save material: the front part of the drill bit's thickness is only 0.5 mm, the material of Processed aren't damaged during drilling process, can reduce material consumption maximize, especially suitable for high value jade, agate, jasper, petrified wood and geodes.

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 and takes 8-25 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 2.5mm - 100mm