Professional Series

Core Drill Bits

Drilling is the most widely used method of concrete penetration by contractors. Depending on the psi of the concrete, aggregate type, and amount of steel, there are various types of bond hardness and grade specifications to choose from.

Series	Relative Diamond Content
7,000
6,000
5,000

We stock a variety of core bits to drill holes as small as 1/2" to 18" in diameter. Special bits for holes bigger in diameter and deeper in depth are available. These bits are typically used on larger hi-cycle or hydraulic drilling equipment.

Based on our expert experience with the listed aggregates, we recommend the following specification and series:

Aggregate Type		Recommended Specification
Critically Hard		CB3507
Hard		CB4507
Medium-Hard		CB5507
Medium-Soft		CB6007
Soft		CB6507

Distribution Accessories
Model	Item
ADM1858	BIT Adapter 18mm Female To 5/8-11 in Male
ADM181147	BIT Adapter M18 Female To 1 1/4-7 in Male
AD114758	BIT Adapter 1 1/4-7 in Female To 5/8-11 in Male
AD581147	BIT Adapter 5/8-11 in Female To 1 1/4-7 in Male
EXT65811	BIT Extension 6 x 5/8-11 in Female/Male
EXT61147	BIT Extension 6 x 1 1/4-7 in Female/Male
EXT12M18	BIT Extension 12 in x M18 Female/Male
EXT125811	BIT Extension 12 x 5/8-11 in Female/Male
EXT121147	BIT Extension 12 x 1 1/4-7 in Female/Male

Standard Blade Sizes
Standard Spacing		Wide Spacing
Diameter	No. of Segments		Diameter	No. of Segments
in.	mm		in.	mm
2	51	5		2	51	4
2 1/4	57	6		2 1/4	57	5
2 1/2	64	6		2 1/2	64	5
3	76	8		3	76	6
3 1/2	89	9		3 1/2	89	7
4	102	10		4	102	8
4 1/4	108	11		4 1/4	108	9
4 1/2	114	12		4 1/2	114	9
5	127	13		5	127	10
5 1/2	140	14		5 1/2	140	11
6	152	15		6	152	12
6 1/4	159	16		6 1/4	159	13
7	178	17		7	178	13
8	203	18		8	203	15
9	229	20		9	229	17
10	254	22		10	254	19
11	279	24		11	279	21
12	305	26		12	305	23
13	330	28		13	330	25
14	356	30		14	356	26
15	381	33		15	381	28
16	406	35		16	406	30
18	457	41		18	457	34

Segment Height
in	mm
.375	9.525

Notice: Features and equipment specifications are subject to change without notice.