DIAMOND DRILL BITS
Diamond drill bits for drilling stone, glass, pearl and ceramic. This jobbers-length series has a straight shank that is just a little smaller than the drilling diameter. This clearance allows you to drill deeper holes.
Set includes 50 diamond drills: 10 tubes, 5pc of each in sizes 36, 40, 45, 47, 50, 52, 54, 56, 61, and 65, and a stand.
When using diamond drills you are technically grinding. For best results you will want to get your surface speeds up around 3,000 – 5,500 SFPM.
SFPM = RPM x DIAMETER x 0.262
RPM = (SFPM x 3.82) divided by DIAMETER
Pack of 5
ALWAYS WEAR EYE PROTECTION WHEN USING A DIAMOND DRILL BIT