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Electroplated Diamond Hole Saw Small Plastic Kit For 7 Pcs Bits and 1 Pcs Plastic Drill Guide

Categories Diamond Hole Saw
Brand Name: Huaxing
Model Number: HXEC001+HXA004
Certification: A&V/ISO/TUV
Place of Origin: China
MOQ: Negotiable
Price: Negotiable
Payment Terms: T/T, L/C, Western Union,Paypal
Supply Ability: 1000 sets / month
Delivery Time: 10days
Packaging Details: White paper box, blister plastic box
Laser Print: Accept
Coating Length: 3-5mm
Total Lenth: 65mm
Color: Silver
Usage: Drill holes
Speed: 14000RMP
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Electroplated Diamond Hole Saw Small Plastic Kit For 7 Pcs Bits and 1 Pcs Plastic Drill Guide

Electroplated Diamond Hole Saw Small Plastic Kit For 7 Pcs Bits and 1 Plastic Drill Guide

Diamond Hole Saw.pdf

Checking Diamond Drill/Bit Run Out

Bring the indicator close to drill, until its spring just touches the surface of the drill. The dial of the

indicator should indicate 0. Turn on your drilling machine, holding the indicator firmly in place. The

dial of your indicator should remain at 0 while your drill is running (rotating). This means you have

no drill run out. If your indicator is greater than zero, your drill is running out. Turn off your drilling machine, and remount the drill. A black marker, is an alternative if you have don’t have an indicator available.

Take a piece of paper or any thin piece of material, measuring its thickness using a caliper or micrometer. Place the material firmly against the drill. Holding the marker firmly in place, remove

material between drill and marker. Turn on your drilling machine and observe drill rotation. If the

marker touches surface of the drill, there is too much drill run out. Turn off drilling machine, and try


Another effective way of checking drill run out, is rotate the drill head assembly (including the water

swivel adapter, if your drill has this feature) by hand. The run out of the drill diamond section (the cutting/drilling edge) will be indicated by the stem. A strong correlation exists between the run out on

the water swivel adapter and on the diamond drill—the larger the run out on the water swivel adapter,

the larger the run out will be on the drill. If the run out is not properly indicated, the drilling operation

will not be accurate.

You should also ensure that your drilling accessories are properly held in the chuck. If the drill or

drilling device is not running true, loosen the chuck of your drilling machine, turn it 90 degrees and

run your drill again. If this does not work, examine condition of your equipment. Mount the drill on

another drilling machine. Make sure your drilling equipment is in proper condition to accomplish

your objectives. No matter how well the diamond drill is made, it will not give you close tolerances

if the shaft, or chuck of your drilling equipment is misaligned or vibrates.

If for some reason you feel there is a manufacturing defect, please return the drill where it was

purchased with a note explaining the difficulty. Defective drills will be repaired or replaced. Drills improperly used will be repaired or replaced at users expense.

Drilling Speeds

To maximize the life of your drill and minimize material damage, it is important to run your drills at the proper drill speed and pressure. Drilling speeds vary with diameter of diamond drill, diamond mesh size, coolant being used, diamond bond type and hardness, as well as material hardness. Micro Diamond Drills from .001” required drilling speeds as high as 150,000+ RPM. Whereas very large diamond drills 48” diameter require drilling speeds as low as 3 RPM’s.

Below is a chart of Recommended RPM's (speeds) in correlation to diamond drill/bit diameter. Please note this chart is for reference purpose only to be used as starting point only. RPM's will vary with material being drilled, material hardness, density, geometry, drilling depth, environment, and operator objectives.

.001” to .004”300,000 to 450,000
.005” to .015”65,000 to 150,00
.016” to .030”30,00 to 65,000
.031” to .090”9,000 to 30,000
1/8” (3.18mm)2,500
3/16” (4.76mm)2,250
¼” (6.35mm)2,000
5/16” (7.94mm)1,500
3/8” (5.52mm)1,250
7/16” (11.1mm)1,000
½” (12.7mm)950
9/16" (14.28mm)925
5/8" (15.87mm)875
2/3" (16.93mm)850
11/16" (17.46mm)850
3/4" (19.05mm)825
7/8" (22.22mm)775
1.0" (25.4mm)700
1-1/8" (28.57mm)675
1-1/4" (1-1/4mm)650
1-3/8" (34.92mm)600
1-1/2" (38.10mm)550
1-5/8" (41.27mm)550
1-3/4" (44.45mm)550
2.00" (50.80mm)525
2-1/4" (57.15mm)500
2-1/2" (63.50mm)475
3.00" (76.20mm)450
3-1/2" (88.90mm)425
4.00" (101.60mm)400
6.00" (152.40mm)300

Diamond Drill Bit Photo

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