All RIDGID segmented diamond drill bits are laser welded for superior strength. Three times stronger than conventional brazed bits. RIDGID core bits are available in 2 styles: Premium Red and High Speed Premium Red. Premium Red core bits are heavy-duty, multi-purpose bits for drilling in many types of materials including reinforced concrete, cinder block, stone, etc. High Speed Premium Red core bits are specially designed for high speed drilling. Unique diamond segment design can increase drilling speed as much as 30% over conventional bits.

Ordering Information

Catalog Number Bit Diameter Weight
in. mm lb. kg
98170 1/2  * * 1.10  0.5 
98175 5/8  * * 1.15  0.5 
98180 3/4  * * 1.19  0.5 
98185 7/8  * * 1.50  0.7 
98190 * * 2.00  0.9 
98195 1 1/4  * * 2.60  1.2 
98200 1 1/2  * * 3.20  1.5 
98205 1 3/4  3.55  1.6 
98210 4.05  1.8 
98215 2 1/4  4.25  1.9 
98220 2 1/2  5.00  2.3 
98225 2 3/4  5.50  2.3 
98230 6.00  2.7 
98235 3 1/2  6.50 
98240 8.00 
98250 11.50 
98255 5 1/2  13.25 
98260 14.00 
98265 6 1/2  15.25 
98270 16.00 
98275 22.00 
98280 24.25 
98290 12  41.25 
98295 14  60.50 
Requires Adapter No. 98715

High Speed Premium Red

Catalog Number Bit Diameter Weight
in. mm lb. kg
51507 4.05 
51512 2 1/2  5.00 
51517 6.00 
51522 3 1/2  6.50 
51527 8.00 
51537 11.50 
51542 14.00 
51547 22.00 
51557 12  41.25 

Bit Extension Rods and Adapters

Catalog Number Length Fits Bit Size Thread Weight
in. mm in. mm in. mm lb. kg
98690 1 - 1 1/2  5/8 - 11  1 1/4 
98695 12  1 - 1 1/2  5/8 - 11 
98700 1 3/4  1 1/4 - 7  2 1/4 
98705 1 3/4  1 1/4 - 7  3 1/4 
98710 12  1 3/4  1 1/4 - 7  6 1/4 
98715 1 1/4 
98720 1 1/4 

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