DIAMOND COUNTERSINKS 

Multi-Layered Electroplated Diamond Countersinks are designed for countersinking operation in materials such as Glass, Quartz, Composites, Graphite Epoxy, Carbon, Boron, Fiberglass, Marble, and many other materials. Designed for use on hole diameters from 1.5" (38.1mm) to 2.5" (63.5mm)

Technical Drawing (sketch) Dimensions A = 1.5" B = 2.490" C = 0.526" D = .375" E = 45 degrees L = 4.5"  -  Price: $163.42

A B C D E L 3/26" 47/64" 5/16" 1/4" 42 degrees 2" 1/4" 51/64" 5/16" 1/4" 42 degrees 2" 1/2" 59/64" 1/4" 1/4" 42 degrees 2" 3/4" 1-3/16" 1/4" 3/8" 42 degrees 2" 1 1-5/8" 3/8" 3/8" 42 degrees 2" 1-1/8" 2" 12" 3/8" 42 degrees 2" 1-1/2" 2.490" 0.526" 3/8" 42 degrees 4.5" HOW TO PROPERLY USE YOUR DIAMOND COUNTER SINK Make sure your diamond countersink will run true Take a scrap piece of material. Make sure it is firmly held together in place and does not move. Take the counter sink and lower it to piece of material until its sharp point barely touches material surface. Using your drilling machine slowly rotate counter sink (very slowly). If the counter sink produces a straight point (dot) than you countersinking operation will not have any problems. If its starts to wobble even just slightly produce scratches of slightly eclipse circle (not perfect dot). This means the diamond counter sink is not properly centered  (installed) in your drilling machine chuck. Adjust and center your counter sink until you are able to produce perfect dot. Another very important concept in using your diamond counter sink is finding a perfect center in your hole. Make sure that your counter sink is perfectly centered in your drilling machine chuck. Bring up your material until the counter sink sharp point touches the center of your hole. Make sure their are no gaps in hole between material and countersink (that countersink) absorbs in entire diameter of your hole. Make sure the material will not wobble while the countersink is in use.

COMPARING & EVALUATING ELECTROPLATED DIAMOND COUNTERSINKS

Not all electroplated diamond countersinks are created equal

CONVENTIONAL ELECTROPLATED DIAMOND DRILLS Most Electroplated diamond drills/bits have only one (single) layer of diamond coated on a steel body. Diamonds stay only on the surface. When this diamond portion is worn out or peeled off, the diamond drill will slow down, drill on the side (not drill straight) or stop working (drilling) altogether.

MULTI - LAYERED ELECTROPLATED DIAMOND CORE DRILLS with SMART CUT™ technology Electroplated diamond core drills Manufactured by UKAM Industrial are Multi Layered. They have 3 layers of diamonds, not just 1 layer of diamonds like conventional electroplated drills. This provides longer drilling life, faster and freer  drilling action, & more consistent performance.   more >>>