OD: = Outer Diameter is called out when drilling a specific hole size.

ID: = Inner Diameter is called out when you are planning on keeping the core left behind.

HALF MOON ID: Is an offset Half Moon shaped ID, allowing the core drill to move material and coolant at the same time as it drills the hole.

DISINTEGRATING ID: This type of I.D. leaves no core behind to clean up, because the ID is OFFSET.

CUT DEPTH/DRILL DEPTH: Pertains to the steel tube NOT including the diamond depth, as this dimension never changes for the life of the Core Drill. Therefore making this a Critical dimension to call out when requesting a quote.

STANDARD ADAPTERS: 5/8-18, 1-14, 3/4-16, 7/8-14, BRANSON (Ultrasonic) and OTHER adapter types available upon request. Shank type mounting is also available ALL you need do…is provide the diameter and length required for your collet.

WATER GROOVES: Are channels in the ID of the diamond section…allowing water/coolant to flow through with ease.
Improving Performance: Slots on the face of the Core Drill allow for a more aggressive yet freer cut.
When drilling materials in the FRAGILE glass families, going to a slightly thinner wall will help to reduce the amount of face pressure when drilling hence allowing a smoother cut.

CORE DRILL TOLERANCES: Vary depending on the OD/ID called and may also change where longer lengths are concerned.

CORE DRILL SIZES: RANGE IN OD and ID from .026“ - 12.0” with CUT DEPTHS up to 14” in most sizes.

Advise Diamond Grit & Diamond Concentration at quote level. If you are not sure, let us help you make the right choice based on your requirements.

*REMEMBER there are no dumb questions…so PLEASE do not hesitate to ask for our assistance to make your machining experience a SUCCESSFUL one!

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