Used Equipment

Diamond Core Tips and Drilling Trouble Shooting

             DIAMOND CORE TIPS AND DRILLING TROUBLE SHOOTING    

                DO NOT stand on any base and drill unless you have anchored it properly. You can secure the drill rig by use of a vacuum system, a jack screw or a mechanical anchor.

                Ensuring a perpendicular hole can be attained by having a small level permanently attached to the column or utilizing a magnetic strip on the level. Base leveling screws can be used to level the drill rig itself.

                Always apply pressure while allowing the bit to spin. Segments of the bit can glaze over and overheat without applied pressure and can also cause diamonds to round off.

                Before starting the drill motor, always start the water. If you don’t have the water on, the water jacket seals can become brittle from the heat which will cause water loss.

                If your bit hits steel rebar, never push the bit. Instead, relax your pressure around 1/3 to 1/2 and allow the bit to cut at its own rate.

                If drilling a very hard aggregate such as high PSI concrete, flint or river rock, the bit can glaze over. If you need to redress or open the bit, you can employ the following measures.

                Drill the bit into a cement block, cinder block or a soft, vitrified grinding wheel. You can also pour masonry sand into the slurry, decrease your water by half for 3-5 minutes and, as the bit increases speed, increase the water flow until it reaches its original non-glazed state.

                You can follow these procedures while also adding a sandblast media like “Black Beauty” to the slurry. Using these procedures singly or in combination should solve your bit glazing problems.

                Turn your water down very low when finished drilling. Make sure to back the core bit out of the hole while the motor is still running.

                If you’re segment is cracking, your bit may be too hard for that particular material or your machine setup isn’t rigid enough. Check your vacuum system, increase RPMs, use a softer bit or tighten the anchor to remedy your cracking problems.

                If you’re experiencing segment loss, your bit may be too hard for that material. Use a softer bond and, if possible, increase motor RPM.

                If you’re seeing loose material in the cut, bit segment hanging or machine setup is not rigid enough, check your vacuum system for proper pressure and tighten your anchor.

                Again, using a softer segment bit will resolve the issue of the segment being too hard for that material and, if you’re getting an unwanted amount of high feed pressure, simply back off your pressure.

                If you’re experiencing overheating, it’s usually the result of an insufficient volume of water to flush and cool the drilling of the segment. Increase the flow of water until the slurry becomes milky and then it will flow much more easily.

                Of course, it’s always a great idea to review pertinent literature accompanying your diamond core bit and prepare yourself for unwanted problems by reading and keeping handy guides such

About the Author

Frank A.M. Richards is the resident expert on diamond blades and tips at http://www.prdiamond.com. You can e-mail him at: mel@prdiamond.com.

HILTI 1 DD-BI 1/2″ /11″ HWC DIAMOND CORE DRILL BIT/CONCRETE BOREING BIT #30671 $0.99

HH USA Diamond Core Drill Bit Set -Tile, Glass, Stone $0.99

Hydro Handle Cordless Tool Diamond Installer Bit Granite Tile Core Bit Glass $0.99

6.25″ 6 1/4″ Concrete Hole Saw Holesaw Core Wet Diamond Tipped Blade Brick Block $0.99

6.00″ 6″ Concrete Hole Saw Holesaw Core Wet Diamond Tipped Blade Brick Block $0.99

Hilti DD-B 77/430 P2 Diamond Core Bit For DD 200 $0.99

NEW Coredinations Core Couture Blue Diamonds 12×12 2 p $1.01

1 Sheet Coredination CORE COUTURE Scrapbook Paper $1.19

Portable Professional Tool 8mm Diamond Coated Drills Drill Hole Saw Glass Core $1.32

Brand New Portable Tool Diamond Coated Drills Drill 8mm Hole Saw Glass Core Tool $1.32

Portable Professional Tool Solid Diamond Coated Drills For Hole Saw Glass Core $1.32

Portable Professional Tool Diamond Coated Drills Drill 8mm Glass Hole Saw Core $1.32

New Diamond Coated Drills Drill Hole Saw Glass Core Portable Professional Tool $1.32

Portable 8mm New Pro Glass Tool Diamond Coated Drills Drill Hole Saw Glass Core $1.32

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $2.66

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $2.67

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $2.67

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $2.67

Tile Glass Metal Hole Saw Diamond Core Drill Bit 6mm 1/4″ Cutting Diameter $2.93

Tile Glass Metal Hole Saw Diamond Core Drill Bit 6mm 1/4″ Cutting Diameter $2.97

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $3.17

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $3.18

8mm 5/16″ Dia Tile Glass Diamond Core Drill Bit Metal Hole Saw Cutting Tool $3.30

1/4″ DIAMOND Core DRILL BITS Glass Fusing $3.40

5 pieces of 7mm Diamond coated hole saw drill bit core drills glass granite $3.50

20PCS mixed silver inlaid diamond copper core bead fits European Charm Bracelet $3.79

Tile Glass Metal Hole Saw Diamond Core Drill Bit 6mm 1/4″ Cutting Diameter $3.82

Tile Glass Metal Hole Saw Diamond Core Drill Bit 6mm 1/4″ Cutting Diameter $3.83

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $3.90

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $3.92

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $3.94

5 pieces 5/32″ inch 4mm diamond coated drill core twist bit $3.99

Tile Glass Metal Hole Saw Diamond Core Drill Bit 6mm 1/4″ Cutting Diameter $4.01

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $4.03

8mm 5/16″ Dia Tile Glass Diamond Core Drill Bit Metal Hole Saw Cutting Tool $4.15

8mm 5/16″ Dia Tile Glass Diamond Core Drill Bit Metal Hole Saw Cutting Tool $4.17

8mm 5/16″ Dia Tile Glass Diamond Core Drill Bit Metal Hole Saw Cutting Tool $4.36

3mm (1/8″) CORE DRILL BIT DIAMOND COATED Jagged Edge $4.49

5 pcs 9mm Diamond coated drills bit bits hole saw core $4.50

20P MIXED silver inlay 5 diamond copper core bead fits European Charm Bracelet $4.54

6mm Diamond Core Tipped Drill Bit Hole Saw China Porcelain Ceramic Cake Stand $4.55

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $4.65

Tile Glass Metal Hole Saw Diamond Core Drill Bit 12mm 1/2″ Cutting Dia $4.66

Tile Glass Metal Hole Saw Diamond Core Drill Bit 12mm 1/2″ Cutting Dia $4.67

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $4.68

40mm Diamond tipped drill bit hole saw core glass block $4.81

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $4.84

Tile Glass Metal Hole Saw Diamond Core Drill Bit 12mm 1/2″ Cutting Dia $4.84

10mm 3/8″ Ceramic Marble Glass Hole Saw Diamond Core Drill Bit Cutting Tool $4.86

1 x 10mm (3/8″) CORE DRILL BIT DIAMOND COATED Jagged Edge Diamond Core Drill Bit $4.98

5 pieces 1/8″ inch diamond coated drill core twist bit $4.99

Soufeel white round April birthstone silver plated core European charm beads $4.99

6mm (1/4″) CORE DRILL BIT DIAMOND COATED Jagged Edge $4.99

1/8″ Diameter CORE DRILL BIT DIAMOND COATED $4.99

42mm Diamond coated drill bit bits hole saw core marble $5.00

3pcs 1/4″ Diamond coated core bits $5.10

20PCS mixed silver inlaid diamond copper core bead fits European Charm Bracelet $5.12

1/4″ Diameter, CORE DRILL BIT DIAMOND COATED $5.19

22mm Diamond Tipped Core Bit Hole Saw for Marble Tile $5.23

45mm Diamond coated drill bit hole saw 1pcs glass core $5.26

5 pieces 6mm (1/4″ inch) Diamond tipped drill bit hole saw core drills $5.49

25mm (1″) Diamond coated hole saw core drill PILOT BIT $5.50

22mm Diamond Tipped Core Bit Hole Saw for Marble Tile $5.59

22mm Diamond Tipped Core Bit Hole Saw for Marble Tile $5.60

20PCS silver inlay 5 diamond copper core bead fits European Charm Bracelet $5.63

(4) 1/8″ DIAMOND DRILL BITS LAPIDARY CORE BIT $5.82

1/8″ Diamond coated drill bit hole saw 3 pcs glass core $5.84

22mm Diamond Tipped Core Bit Hole Saw for Marble Tile $5.94

1/2″ – WET Diamond Brazed Mini Core Drill Bit $5.94

20PCS Silver 5 diamond inlaid copper core bead fits European Charm Bracelet $5.95

5 pcs 8mm ( 5/16″ inch ) Diamond coated core drills bit bits hole saw drill $5.99

5 pcs 7mm Diamond coated drills bit bits hole saw core $5.99

5 pieces 9mm Diamond coated tipped drills drill bit bits hole saw core $5.99

3 pieces of 17mm Diamond coated drills drill bit bits hole saw core tile granite $5.99

1/8″ Diamond Core Bit, D-BT17 $5.99

AUSTRIAN CRYSTAL Sterling Silver 925 Core BLUE W/WHITE DIAMONDS LARGE fits all $6.00

25mm ( 1″ ) Diamond coated permium drills hole saw core drill with PILOT BIT $6.00

48mm Diamond coated drill bit bits hole saw drills core $6.00

30mm Diamond coated hole saw core drill with PILOT BIT $6.00

NEW STAINED GLASS LAPIDARY 1/8″ DIAMOND CORE DRILL BIT $6.00

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.02

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.02

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.02

1/8″ Diamond coated drill bit hole saw 5 pcs glass core $6.08

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.32

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.34

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.44

3pc Diamond Hole Saw Set – Core Drill – 1/4″,5/16″,3/8″ *SHIPS FROM USA* $6.49

3pc Diamond Hole Saw Set CORE DRILL 1/4″ + 5/16 + 3/8″ $6.49

53mm Diamond coated hole drill drills bit saw core glass tile $6.50

55mm Diamond coated drill bit bits hole saw core drills $6.50

3pc DIAMOND HOLE SAW – CORE DRILL Set – 1/4″+5/16″+3/8″ $6.50

53mm ( 2 1/8″ inch ) Diamond coated hole drill drills bit saw core $6.50

3pc DIAMOND HOLE SAW – CORE DRILL Set – 1/4″+5/16″+3/8″ $6.50

3pc Diamond Hole Saw-CORE DRILL Set 1/4″ – 5/16″ – 3/8″ – SKU# BZDHS3P $6.50

12mm Diameter Diamond Tip Hole Saw Drill Core Bit Tool $6.58

3mm Hole Saw Glasses Tile Core Cutter Diamond Bit 2 PCS $6.58

NEW STAINED GLASS LAPIDARY 1/8″ DIAMOND CORE DRILL BIT $6.59

10mm Dia. Diamond Tipped Straight Shank Drill Core Bit $6.76

Straight Round Shank 12mm Dia. Diamond Tipped Core Bit $6.79

GelPro Basketweave Comfort Floor Mat GelPro gel-filled anti-fatigue floor mats are scientifically engineered to provide maximum comfort without compromising visual appeal, and while they are great for everyone, they are perfect for people with foot pain, back pain, or arthritis. As seen on HGTV, Food Network and Fine Living, GelPro Mats come in fabrics, colors, styles, and sizes to match any home’s decor. Order yours today and Stand …

Victorinox Diamond Honing Steel Oval with Hollow Core, Black Plastic Handle Victorinox, makers of the original Swiss army knife, has been crafting fine cutlery since the later 1800′s. The most valuable tool in any kitchen is a sharp knife. so maintain your edge. Victorinox Honing Steels are manufactured in Sheffield, England, to Victorinox specifications….

Victorinox Diamond Honing Steel Round with Solid Core, Black Plastic Handle Restore your knives precision edges with regular monthly use of the diamond sharpening steel by Forschner More durable with more precision, thanks to the diamond coating Keeps knives at their best so your prepping is easy and efficient Diamond steels will actually remove metal from the knife blade The steel will quickly put an edge on a knife that cannot be sharpened with a regular steel…

Hard to the Core [Explicit] $8.99 …

Pro-Quality 20-Piece Diamond-Point Bit Set for Rotary Tool – Glass, Stone, Ceramic $1.10 Professional Quality, 1/8 in. Shank, 180 Grit. Includes 20 assorted shapes covered with diamond particles. All bits have 1/8 in. shanks and come in convienient plastic holder. Excellent for fine detail work, cutting, engraving, carving, touch-up and finishing. Use on wood, jade, ceramic, glass, hardened steel, semi-precious stones and other hard materials….

Leatherman 830160 Surge Pocket Multitool with Nylon/Leather Sheath $102.00 The Surge Extra-Large Multitool from Leatherman The Leatherman Surge multitool is built with tough new pliers, longer blades and easy-to-use locks. This multitool features a helpful blade exchanger with the saw and diamond/wood file blades — and with this blade exchanger, two knives and the extra-strong scissors are easily accessed from the outside of the tool. Also, there are four outside-openin…

DEWALT DW1956 Pilot Point 16-Piece Twist Drill Bit Assortment $16.95 The DeWalt DW1956 16-piece Pilot Point twist drill bit assortment comes with pilot point tips for starts on contact that result in clean, accurate holes. These bits are designed to reduce lock-up on breakthrough, and also feature a no-spin shank that eliminates the frustration of bit spinning in the chuck. Other features include a tapered web for greater durability and reduced breaking, and size m…

Yoga for Beginners Boxed Set (Yoga for Stress Relief / AM-PM Yoga for Beginners / Essential Yoga for Inflexible People) $14.99 Everything You Need To Get Started And Progress With Yoga! Yoga For Beginners Deluxe 3 Dvd Setis The Perfect Way To Explore And Experience The Numerous Benefits Of Yoga. Each Of These 40 Routines Focuses On Different Physical And Mental Aspects Of Yoga, Such As Building Strength, Improving Flexibility, Reducing Stress And More! Never Before Has A Has A Single Collection Of Yoga Dvds Contained So M…

Hardcore Homecoming: Platinum Edition $7.99 Return to the corner of Swanson and Ritner in South Philly, and the bingo hall that was home to one of pro wrestling’s most infamous promotions, in this blood- and controversy-filled supercard. Among the extreme icons featured in action are Raven versus the Sandman, Justin Credible versus Jerry Lynn, Kronus teaming up with New Jack to take on Ian and Axl Rotten, and others, along with a “Fallen He…

1928 Bridal Silver Tone Crystal Simulated Freshwater Pearl Barrette $38.00 Not just for brides but for any woman who wishes to accent her tresses in stunning style. Cut in a design reminiscent of the glorious art deco patterns from the 1920′s, this vintage inspired design will make you shine….