Big Flush PDC Bits

Big Flush PDC bits are designed to drill through mixed ground conditions like soft sand, shale & limestone FAST!

Name	Diameter inches	Diameter mm	Face shape	Shank or connection	SKU	Add to quote
Big Flush PDC Bits - 2 7/8", 73, 3 Blades, Big Flush, 1 1/2" AMT, No Back Out Cutters	2-7/8"	73	3 Blades	1-1/2" AMT	ITM260811.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 2 7/8", 73, 3 Blades, Big Flush, N ROD 4, No Back Out Cutters	2-7/8"	73	3 Blades	N ROD 4	ITM260706.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 2 15/16", 74.6, 3 Blades, Big Flush, N ROD 4, No Back Out Cutters	2-15/16"	74.6	3 Blades	N ROD 4	ITM260645.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3", 76.2, 3 Blades, Big Flush, 1 1/2" AMT, No Back Out Cutters	3"	76.2	3 Blades	1-1/2" AMT	ITM260746.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3", 76.2, 3 Blades, Big Flush, N ROD 4, No Back Out Cutters	3"	76.2	3 Blades	N ROD 4	ITM260783.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 1/4", 82.6, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-1/4"	82.6	5 Blades	2-3/8" API REG PIN Connection	ITM260716.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 1/2", 88.9, 3 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-1/2"	88.9	3 Blades	2-3/8" API REG PIN Connection	ITM260775.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 3/4", 95.3, 4 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-3/4"	95.3	4 Blades	2-3/8" API REG PIN Connection	ITM260776.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 7/8", 98.4, 3 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-7/8"	98.4	3 Blades	2-3/8" API REG PIN Connection	ITM260646.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 7/8", 98.4, 4 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-7/8"	98.4	4 Blades	2-3/8" API REG PIN Connection	ITM260859.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 7/8", 98.4, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-7/8"	98.4	5 Blades	2-3/8" API REG PIN Connection	ITM260638.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 3 15/16", 100, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	3-15/16"	100	5 Blades	2-3/8" API REG PIN Connection	ITM260705.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4", 101.6, 3 Blades, Big Flush, 1 1/2" AMT, No Back Out Cutters	4"	101.6	3 Blades	1-1/2" AMT	ITM260812.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4", 101.6, 3 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4"	101.6	3 Blades	2-3/8" API REG PIN Connection	ITM260670.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4", 101.6, 4 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4"	101.6	4 Blades	2-3/8" API REG PIN Connection	ITM260699.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4", 101.6, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4"	101.6	5 Blades	2-3/8" API REG PIN Connection	ITM260630.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/8", 104.8, 4 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/8"	104.8	4 Blades	2-3/8" API REG PIN Connection	ITM260713.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/8", 104.8, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/8"	104.8	5 Blades	2-3/8" API REG PIN Connection	ITM260759.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/4", 108, 3 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/4"	108	3 Blades	2-3/8" API REG PIN Connection	ITM260695.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/4", 108, 4 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/4"	108	4 Blades	2-3/8" API REG PIN Connection	ITM260778.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/4", 108, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/4"	108	5 Blades	2-3/8" API REG PIN Connection	ITM260669.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/2", 114.3, 3 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/2"	114.3	3 Blades	2-3/8" API REG PIN Connection	ITM260823.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 1/2", 114.3, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	4-1/2"	114.3	5 Blades	2-3/8" API REG PIN Connection	ITM260642.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 3/4", 120.7, 3 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	4-3/4"	120.7	3 Blades	2-7/8" API REG PIN Connection	ITM260648.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 3/4", 120.7, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	4-3/4"	120.7	5 Blades	2-7/8" API REG PIN Connection	ITM260640.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 7/8", 123.8, 4 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	4-7/8"	123.8	4 Blades	2-7/8" API REG PIN Connection	ITM260837.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 4 7/8", 123.8, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	4-7/8"	123.8	5 Blades	2-7/8" API REG PIN Connection	ITM260632.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5", 127, 4 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5"	127	4 Blades	2-7/8" API REG PIN Connection	ITM260804.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5", 127, 5 Blades, Big Flush, 2 3/8" API REG PIN Connection, No Back Out Cutters	5"	127	5 Blades	2-3/8" API REG PIN Connection	ITM260820.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5", 127, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5"	127	5 Blades	2-7/8" API REG PIN Connection	ITM260633.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/8", 130.2, 4 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-1/8"	130.2	4 Blades	2-7/8" API REG PIN Connection	ITM260717	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/8", 130.2, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-1/8"	130.2	5 Blades	2-7/8" API REG PIN Connection	ITM260657.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/4", 133.4, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-1/4"	133.4	5 Blades	2-7/8" API REG PIN Connection	ITM260634.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5.3", 135, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection	5.3"	135	5 Blades	2-7/8" API REG PIN Connection	ITM260715	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/2", 139.7, 4 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-1/2"	139.7	4 Blades	2-7/8" API REG PIN Connection	ITM260744.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/2", 139.7, 4 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-1/2"	139.7	4 Blades	3-1/2" API REG PIN Connection	ITM260882.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/2", 139.7, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-1/2"	139.7	5 Blades	2-7/8" API REG PIN Connection	ITM260635.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 1/2", 139.7, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-1/2"	139.7	5 Blades	3-1/2" API REG PIN Connection	ITM260818.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 5/8", 142.9, 4 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-5/8"	142.9	4 Blades	2-7/8" API REG PIN Connection	ITM260745.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 5/8", 142.9, 5 Blades, Big Flush, 2 7/8" API REG PIN Connection, No Back Out Cutters	5-5/8"	142.9	5 Blades	2-7/8" API REG PIN Connection	ITM260637.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 5/8", 142.9, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-5/8"	142.9	5 Blades	3-1/2" API REG PIN Connection	ITM260636.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 5/8", 142.9, 6 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-5/8"	142.9	6 Blades	3-1/2" API REG PIN Connection	ITM260813.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 3/4", 146.1, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-3/4"	146.1	5 Blades	3-1/2" API REG PIN Connection	ITM260862	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 7/8", 149.2, 3 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-7/8"	149.2	3 Blades	3-1/2" API REG PIN Connection	ITM260671.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 5 7/8", 149.2, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	5-7/8"	149.2	5 Blades	3-1/2" API REG PIN Connection	ITM260639.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6”, 152.4, 3 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6”	152.4	3 Blades	3-1/2" API REG PIN Connection	ITM260857	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6”, 152.4, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6”	152.4	5 Blades	3-1/2" API REG PIN Connection	ITM260631.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/8”, 155.6, 3 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/8”	155.6	3 Blades	3-1/2" API REG PIN Connection	ITM260774	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/8”, 155.6, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/8”	155.6	5 Blades	3-1/2" API REG PIN Connection	ITM260772	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/4”, 158.8, 3 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/4”	158.8	3 Blades	3-1/2" API REG PIN Connection	IYM260768	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/4”, 158.8, 4 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/4”	158.8	4 Blades	3-1/2" API REG PIN Connection	ITM260757	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/4”, 158.8, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, Back Out Cutters	6 1/4”	158.8	5 Blades	3-1/2" API REG PIN Connection	ITM260747	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/2”, 165.1, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/2”	165.1	5 Blades	3-1/2" API REG PIN Connection	ITM260836.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 1/2”, 165.1, 6 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 1/2”	165.1	6 Blades	3-1/2" API REG PIN Connection	ITM260816.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 3/4”, 171.5, 4 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 3/4”	171.5	4 Blades	3-1/2" API REG PIN Connection	ITM260756.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 6 3/4”, 171.5, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	6 3/4”	171.5	5 Blades	3-1/2" API REG PIN Connection	ITM260696.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7", 177.8, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	7"	177.8	5 Blades	3-1/2" API REG PIN Connection	ITM260702.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7", 177.8, 6 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	7"	177.8	6 Blades	3-1/2" API REG PIN Connection	ITM260703.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7 1/8", 181, 6 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	7-1/8"	181	6 Blades	3-1/2" API REG PIN Connection	ITM260788.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7 1/2", 190.5, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	7-1/2"	190.5	5 Blades	4-1/2" API REG PIN Connection	ITM260847.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7 5/8", 193.7, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	7-5/8"	193.7	5 Blades	4-1/2" API REG PIN Connection	ITM260689.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7 7/8", 200, 5 Blades, Big Flush, 3 1/2" API REG PIN Connection, No Back Out Cutters	7-7/8"	200	5 Blades	3-1/2" API REG PIN Connection	ITM260743.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 7 7/8", 200, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	7-7/8"	200	5 Blades	4-1/2" API REG PIN Connection	ITM260688.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 8", 203.2, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	8"	203.2	5 Blades	4-1/2" API REG PIN Connection	ITM260694.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 8 1/2", 215.9, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	8-1/2"	215.9	5 Blades	4-1/2" API REG PIN Connection	ITM260647	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 8 3/4", 222.3, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	8-3/4"	222.3	5 Blades	4-1/2" API REG PIN Connection	ITM260803.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 9", 228.6, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	9"	228.6	5 Blades	4-1/2" API REG PIN Connection	ITM260687.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 9 1/4", 235, 6 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	9-1/4"	235	6 Blades	4-1/2" API REG PIN Connection	ITM260728	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 9 7/8", 250.8, 5 Blades, Big Flush, 4 1/2" API REG PIN Connection, No Back Out Cutters	9-7/8"	250.8	5 Blades	4-1/2" API REG PIN Connection	ITM260712.	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 9 7/8", 250.8, 5 Blades, Big Flush, 6 5/8" API REG PIN Connection, No Back Out Cutters	9-7/8"	250.8	5 Blades	6-5/8" API REG PIN Connection	ITM260718	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 9 7/8", 250.8, 6 Blades, Big Flush, 6 5/8" API REG PIN Connection, No Back Out Cutters	9-7/8"	250.8	6 Blades	6-5/8" API REG PIN Connection	ITM260704	Add to quote This product is already in your quote request list. View the quote
Big Flush PDC Bits - 17 1/2", 444.5, 5 Blades, Big Flush, 7 5/8" API REG PIN Connection, No Back Out Cutters	17-1/2"	444.5	5 Blades	7-5/8" API REG PIN Connection	ITM260798	Add to quote This product is already in your quote request list. View the quote

Description

Big Flush PDC Bits

Say goodbye to nozzle clogging with the Big Flush PDC range, engineered for maximum performance in sticky shale and clay. Designed to drill through mixed ground conditions—including soft sand, shale, and limestone—these bits deliver high-volume drilling fluid at low pressure, ensuring optimal speed and efficiency.

Ideal for geothermal, geotechnical, and water well applications, they also excel in reverse circulation applications. Available in sizes from 2-7/8” to 17-1/2”, the Big Flush line is American-designed and precision-manufactured in Illinois. Certified to ISO9001:2015 standards, these rugged, reliable bits provide the durability and high-performance results required for today’s demanding drilling projects

Additional information

Diameter inches	2-7/8", 2-15/16", 3", 3-1/4", 3-1/2", 3-3/4", 3-7/8", 3-15/16", 4", 4-1/8", 4-1/4", 4-1/2", 4-3/4", 4-7/8", 5", 5-1/8", 5-1/4", 5.3", 5-1/2", 5-5/8", 5-3/4", 5-7/8", 6”, 6 1/8”, 6 1/4”, 6 1/2”, 6-5/8", 6 3/4”, 7", 7-1/8", 7-1/2", 7-5/8", 7-7/8", 8", 8-1/2", 8-3/4", 9", 9-1/4", 9-7/8", 17-1/2"
Diameter mm	73, 74.6, 76.2, 82.6, 88.9, 95.3, 98.4, 100, 101.6, 104.8, 108, 114.3, 120.7, 123.8, 127, 130.2, 133.4, 135, 139.7, 142.9, 146.1, 149.2, 152.4, 155.6, 158.8, 165.1, 168.3, 171.5, 177.8, 181, 190.5, 193.7, 200, 203.2, 215.9, 222.3, 228.6, 235, 250.8, 444.5
Face shape	3 Blades, 4 Blades, 5 Blades, 6 Blades
Design	Big Flush
Shank or connection	1-1/2" AMT, N ROD 4, 2-3/8" API REG PIN Connection, 2-7/8" API REG PIN Connection, 3-1/2" API REG PIN Connection, 4-1/2" API REG PIN Connection, 6-5/8" API REG PIN Connection, 7-5/8" API REG PIN Connection
Back Out Cutters	Back Out Cutters, No Back Out Cutters

Big Flush PDC Bits

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Big Flush PDC Bits

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