Kennametal A4 Grooving Inserts

A4™ Tooling and Beyond™ Inserts for All Your O.D. and I.D. Applications

Primary Application

Choose A4 tooling for turning, facing, grooving, face grooving, and cut-off applications across a broad range of workpiece materials. The unique clamping system and versatile insert geometry deliver the highest metal removal rates in the industry.

Features and Benefits

A4 Grooving and Turning System

One tool for turning, facing, grooving, face-grooving, and cut-off in O.D. and I.D. applications means exceptionally fast cycle times, no turret indexes!
Extra-long clamping area, ground 120° bottom prism seating surface, and an exclusive top guide rail combine to deliver unsurpassed grooving and side-turning stability!
Precise insert positioning is ensured for accurate cuts!
Rigid clamping securely locks insert in place through the toughest cuts.

Versatile design enables one system to handle O.D. and I.D. grooving, face grooving, back turning, undercutting, and even threading operations.
Chip control inserts provide excellent chip evacuation in grooving, and offer better chip control in multidirectional turning..

Click through to the products to see videos of them in action, and also find their related matching tools.

A4C-L-CF

Cut-Off insert with CF(Cut-Off Fine Positive Rake) chipbreaker

Product Code	W	Radius	Seat
A4C0155L06CF01 KC5025 »	1.50	0.20	1
A4C0205L06CF02 KCU25 »	1.99	0.20	2
A4C0205L10CF02 KC5025 »	1.99	0.20	2
A4C0305L06CF02 KC5025 »	3.05	0.20	3
A4C0305L06CF02 KCU25 »	3.05	0.20	3
A4C0305L10CF02 KCU25 »	3.05	0.20	3
A4C0405L06CF02 KCU25 »	4.05	0.20	4
A4C0405L10CF02 KC5025 »	4.05	0.20	4
A4C0405L10CF02 KCU25 »	4.05	0.20	4

A4C-N-CF

Cut-Off insert with CF(Cut-Off Fine Positive Rake) chipbreaker

Product Code	W	Radius	Seat
A4C0155N00CF01 KC5025 »	1.50	0.20	1
A4C0155N00CF01 KCU25 »	1.50	0.20	1
A4C0205N00CF02 KC5025 »	2.05	0.20	2
A4C0205N00CF02 KCU25 »	2.05	0.20	2
A4C0255N00CF02 KC5025 »	2.50	0.20	2B
A4C0255N00CF02 KCU25 »	2.50	0.20	2B
A4C0305N00CF02 KC5025 »	3.05	0.20	3
A4C0305N00CF02 KCU25 »	3.05	0.20	3
A4C0405N00CF02 KC5025 »	4.05	0.20	4
A4C0405N00CF02 KCU25 »	4.05	0.20	4

A4C-R-CF

Cut-Off insert with CF(Cut-Off Fine Positive Rake) chipbreaker

Product Code	W	Radius	Seat
A4C0155R06CF01 KC5025 »	1.50	0.20	1
A4C0155R10CF01 KCU25 »	1.50	0.20	1
A4C0155R16CF01 KC5025 »	1.50	0.20	1
A4C0205R06CF02 KC5025 »	1.99	0.20	2
A4C0205R06CF02 KCU25 »	1.99	0.20	2
A4C0205R10CF02 KCU25 »	1.99	0.20	2
A4C0255R06CF02 KC5025 »	2.00	0.20	2B
A4C0305R06CF02 KC5025 »	3.05	0.20	3
A4C0305R06CF02 KCU25 »	3.05	0.20	3
A4C0305R10CF02 KC5025 »	3.05	0.20	3
A4C0305R10CF02 KCU25 »	3.05	0.20	3
A4C0405R06CF02 KCU25 »	4.05	0.20	4
A4C0405R10CF02 KC5025 »	4.05	0.20	4
A4C0405R10CF02 KCU25 »	4.05	0.20	4

A4G-P-GMP

Square insert with GMP(Grooving and turning medium positive rake angle) chipbreaker

Product Code	W	Radius	Seat
A4G0200M02P02GMP KC5010 »	2.00	0.20	2
A4G0200M02P02GMP KC5025 »	2.00	0.20	2
A4G0300M03P02GMP KC5010 »	3.00	0.20	3
A4G0300M03P02GMP KC5025 »	3.00	0.20	3
A4G0300M03P04GMP KC5010 »	3.00	0.40	3
A4G0300M03P04GMP KC5025 »	3.00	0.40	3
A4G0400M04P02GMP KC5010 »	4.00	0.20	4
A4G0400M04P02GMP KC5025 »	4.00	0.20	4
A4G0400M04P04GMP KC5010 »	4.00	0.40	4
A4G0400M04P04GMP KC5025 »	4.00	0.40	4
A4G0400M04P08GMP KC5010 »	4.00	0.80	4
A4G0400M04P08GMP KC5025 »	4.00	0.80	4
A4G0500M05P04GMP KC5010 »	5.00	0.40	5
A4G0500M05P04GMP KC5025 »	5.00	0.40	5
A4G0500M05P08GMP KC5010 »	5.00	0.80	5
A4G0500M05P08GMP KC5025 »	5.00	0.80	5
A4G0600M06P04GMP KC5010 »	6.00	0.40	6
A4G0600M06P08GMP KC5010 »	6.00	0.80	6
A4G0600M06P08GMP KC5025 »	6.00	0.80	6
A4G0800M08P08GMP KC5010 »	8.00	0.80	8
A4G1000M10P08GMP KC5010 »	10.00	0.80	10
A4G1000M10P12GMP KC5010 »	10.00	1.20	10

A4G-U-GMN

Square insert with GMN(Grooving and turning medium machining stable cutting edge) chipbreaker

Product Code	W	Radius	Seat
A4G0205M02U02GMN KC5010 »	2.05	0.20	2
A4G0205M02U02GMN KC5025 »	2.05	0.20	2
A4G0205M02U02GMN KC9110 »	2.05	0.20	2
A4G0205M02U02GMN KCP10 »	2.05	0.20	2
A4G0305M03U02GMN KC5010 »	3.05	0.20	3
A4G0305M03U02GMN KC5025 »	3.05	0.20	3
A4G0305M03U02GMN KC9110 »	3.05	0.20	3
A4G0305M03U02GMN KC9125 »	3.05	0.20	3
A4G0305M03U02GMN KCP10 »	3.05	0.20	3
A4G0305M03U02GMN KCP25 »	3.05	0.20	3
A4G0305M03U04GMN KC5010 »	3.05	0.40	3
A4G0305M03U04GMN KC5025 »	3.05	0.40	3
A4G0305M03U04GMN KC9110 »	3.05	0.40	3
A4G0305M03U04GMN KC9125 »	3.05	0.40	3
A4G0305M03U04GMN KCP10 »	3.05	0.40	3
A4G0305M03U04GMN KCP25 »	3.05	0.40	3
A4G0405M04U04GMN KC5010 »	4.05	0.40	4
A4G0405M04U04GMN KC5025 »	4.05	0.40	4
A4G0405M04U04GMN KC9110 »	4.05	0.40	4
A4G0405M04U04GMN KC9125 »	4.05	0.40	4
A4G0405M04U04GMN KCP25 »	4.05	0.40	4
A4G0405M04U08GMN KC5010 »	4.05	0.80	4
A4G0405M04U08GMN KC5025 »	4.05	0.80	4
A4G0405M04U08GMN KC9110 »	4.05	0.80	4
A4G0405M04U08GMN KC9125 »	4.05	0.80	4
A4G0405M04U08GMN KCP10 »	4.05	0.80	4
A4G0405M04U08GMN KCP25 »	4.05	0.80	4
A4G0505M05U04GMN KC5010 »	5.05	0.40	5
A4G0505M05U04GMN KC5025 »	5.05	0.40	5
A4G0505M05U04GMN KC9110 »	5.05	0.40	5
A4G0505M05U04GMN KC9125 »	5.05	0.40	5
A4G0505M05U04GMN KCP10 »	5.05	0.40	5
A4G0505M05U04GMN KCP25 »	5.05	0.40	5
A4G0505M05U08GMN KC5010 »	5.05	0.80	5
A4G0505M05U08GMN KC5025 »	5.05	0.80	5
A4G0505M05U08GMN KC9110 »	5.05	0.80	5
A4G0505M05U08GMN KC9125 »	5.05	0.80	5
A4G0505M05U08GMN KCP10 »	5.05	0.80	5
A4G0505M05U08GMN KCP25 »	5.05	0.80	5
A4G0605M06U04GMN KC5010 »	6.05	0.40	6
A4G0605M06U04GMN KC5025 »	6.05	0.40	6
A4G0605M06U04GMN KC9110 »	6.05	0.40	6
A4G0605M06U04GMN KC9125 »	6.05	0.40	6
A4G0605M06U04GMN KCP10 »	6.05	0.40	6
A4G0605M06U04GMN KCP25 »	6.05	0.40	6
A4G0605M06U08GMN KC5010 »	6.05	0.80	6
A4G0605M06U08GMN KC5025 »	6.05	0.80	6
A4G0605M06U08GMN KC9110 »	6.05	0.80	6
A4G0605M06U08GMN KC9125 »	6.05	0.80	6
A4G0605M06U08GMN KCP10 »	6.05	0.80	6
A4G0605M06U08GMN KCP25 »	6.05	0.80	6
A4G0605M06U12GMN KC5010 »	6.05	1.20	6
A4G0605M06U12GMN KC5025 »	6.05	1.20	6
A4G0605M06U12GMN KC9125 »	6.05	1.20	6
A4G0605M06U12GMN KCP25 »	6.05	1.20	6
A4G0805M08U08GMN KC5010 »	8.05	0.80	8
A4G0805M08U08GMN KC9110 »	8.05	0.80	8
A4G0805M08U08GMN KC9125 »	8.05	0.80	8
A4G0805M08U08GMN KCP10 »	8.05	0.80	8
A4G0805M08U08GMN KCP25 »	8.05	0.80	8
A4G0805M08U12GMN KC5010 »	8.05	1.20	8
A4G0805M08U12GMN KC9110 »	8.05	1.20	8
A4G0805M08U12GMN KC9125 »	8.05	1.20	8
A4G0805M08U12GMN KCP10 »	8.05	1.20	8
A4G0805M08U12GMN KCP25 »	8.05	1.20	8
A4G1005M10U08GMN KC5025 »	10.05	0.80	10
A4G1005M10U08GMN KC9110 »	10.05	0.80	10
A4G1005M10U08GMN KC9125 »	10.05	0.80	10
A4G1005M10U08GMN KCP10 »	10.05	0.80	10
A4G1005M10U08GMN KCP25 »	10.05	0.80	10
A4G1005M10U12GMN KC5025 »	10.05	1.20	10
A4G1005M10U12GMN KC9110 »	10.05	1.20	10
A4G1005M10U12GMN KC9125 »	10.05	1.20	10
A4G1005M10U12GMN KCP10 »	10.05	1.20	10
A4G1005M10U12GMN KCP25 »	10.05	1.20	10

A4G-U-GMP

Square insert with GMP(Grooving and turning medium positive rake angle) chipbreaker

Product Code	W	Radius	Seat
A4G0205M02U02GMP KC5010 »	2.05	0.20	2
A4G0205M02U02GMP KC5025 »	2.05	0.20	2
A4G0205M02U02GMP KC9110 »	2.05	0.20	2
A4G0205M02U02GMP KCP10 »	2.05	0.20	2
A4G0305M03U02GMP KC5010 »	3.05	0.20	3
A4G0305M03U02GMP KC5025 »	3.05	0.20	3
A4G0305M03U02GMP KC9110 »	3.05	0.20	3
A4G0305M03U02GMP KC9125 »	3.05	0.20	3
A4G0305M03U02GMP KCP10 »	3.05	0.20	3
A4G0305M03U02GMP KCP25 »	3.05	0.20	3
A4G0305M03U02GMP KT315 »	3.05	0.20	3
A4G0305M03U04GMP KC5010 »	3.05	0.40	3
A4G0305M03U04GMP KC5025 »	3.05	0.40	3
A4G0305M03U04GMP KC9110 »	3.05	0.40	3
A4G0305M03U04GMP KC9125 »	3.05	0.40	3
A4G0305M03U04GMP KCP10 »	3.05	0.40	3
A4G0305M03U04GMP KCP25 »	3.05	0.40	3
A4G0305M03U04GMP KT315 »	3.05	0.40	3
A4G0405M04U04GMP KC5010 »	4.05	0.40	4
A4G0405M04U04GMP KC5025 »	4.05	0.40	4
A4G0405M04U04GMP KC9110 »	4.05	0.40	4
A4G0405M04U04GMP KC9125 »	4.05	0.40	4
A4G0405M04U04GMP KCP10 »	4.05	0.40	4
A4G0405M04U04GMP KCP25 »	4.05	0.40	4
A4G0405M04U04GMP KT315 »	4.05	0.40	No
A4G0405M04U08GMP KC5010 »	4.05	0.80	4
A4G0405M04U08GMP KC5025 »	4.05	0.80	4
A4G0405M04U08GMP KC9110 »	4.05	0.80	4
A4G0405M04U08GMP KC9125 »	4.05	0.80	4
A4G0405M04U08GMP KCP10 »	4.05	0.80	4
A4G0405M04U08GMP KCP25 »	4.05	0.80	4
A4G0405M04U08GMP KT315 »	4.05	0.80	4
A4G0505M05U04GMP KC5010 »	5.05	0.40	5
A4G0505M05U04GMP KC5025 »	5.05	0.40	5
A4G0505M05U04GMP KC9110 »	5.05	0.40	5
A4G0505M05U04GMP KC9125 »	5.05	0.40	5
A4G0505M05U04GMP KCP10 »	5.05	0.40	5
A4G0505M05U04GMP KCP25 »	5.05	0.40	5
A4G0505M05U08GMP KC5010 »	5.05	0.80	5
A4G0505M05U08GMP KC5025 »	5.05	0.80	5
A4G0505M05U08GMP KC9110 »	5.05	0.80	5
A4G0505M05U08GMP KC9125 »	5.05	0.80	5
A4G0505M05U08GMP KCP10 »	5.05	0.80	5
A4G0505M05U08GMP KCP25 »	5.05	0.80	5
A4G0505M05U08GMP KT315 »	5.05	0.80	5
A4G0605M06U04GMP KC5010 »	6.05	0.40	6
A4G0605M06U04GMP KC5025 »	6.05	0.40	6
A4G0605M06U04GMP KC9110 »	6.05	0.40	6
A4G0605M06U04GMP KC9125 »	6.05	0.40	6
A4G0605M06U04GMP KCP10 »	6.05	0.40	6
A4G0605M06U04GMP KCP25 »	6.05	0.40	6
A4G0605M06U08GMP KC5010 »	6.05	0.80	6
A4G0605M06U08GMP KC5025 »	6.05	0.80	6
A4G0605M06U08GMP KC9110 »	6.05	0.80	6
A4G0605M06U08GMP KC9125 »	6.05	0.80	6
A4G0605M06U08GMP KCP10 »	6.05	0.80	6
A4G0605M06U08GMP KCP25 »	6.05	0.80	6
A4G0605M06U08GMP KT315 »	6.05	0.80	6
A4G0605M06U12GMP KC5010 »	6.05	1.20	6
A4G0605M06U12GMP KC5025 »	6.05	1.20	6
A4G0805M08U08GMP KC5025 »	8.05	0.80	8
A4G0805M08U08GMP KC9110 »	8.05	0.80	8
A4G0805M08U08GMP KC9125 »	8.05	0.80	8
A4G0805M08U08GMP KCP10 »	8.05	0.80	8
A4G0805M08U08GMP KCP25 »	8.05	0.80	8
A4G0805M08U12GMP KC5025 »	8.05	1.20	8
A4G1005M10U08GMP KC5010 »	10.05	0.80	10
A4G1005M10U08GMP KC5025 »	10.05	0.80	10
A4G1005M10U12GMP KC5025 »	10.05	1.20	10
A4G1005M10U12GMP KC9125 »	10.05	1.20	10
A4G1005M10U12GMP KCP25 »	10.05	1.20	10

A4G-U-GUP

Square insert with GUP(Grooving and turning high positive geometry) chipbreaker

Product Code	W	Radius	Seat
A4G0205M02U02GUP KCP10 »	2.05	0.20	2
A4G0205M02U02GUP KCP25 »	2.05	0.20	2
A4G0305M03U02GUP KCP10 »	3.05	0.20	3
A4G0305M03U02GUP KCP25 »	3.05	0.20	3
A4G0305M03U04GUP KCP10 »	3.05	0.40	3
A4G0305M03U04GUP KCP25 »	3.05	0.40	3
A4G0405M04U04GUP KCP10 »	4.05	0.40	4
A4G0405M04U04GUP KCP25 »	4.05	0.40	4
A4G0405M04U08GUP KCP10 »	4.05	0.80	4
A4G0405M04U08GUP KCP25 »	4.05	0.80	4
A4G0505M05U04GUP KCP10 »	5.05	0.40	5
A4G0505M05U04GUP KCP25 »	5.05	0.40	5
A4G0505M05U08GUP KCP10 »	5.05	0.80	5
A4G0505M05U08GUP KCP25 »	5.05	0.80	5
A4G0605M06U04GUP KCP10 »	6.05	0.40	6
A4G0605M06U04GUP KCP25 »	6.05	0.40	6
A4G0605M06U08GUP KCP10 »	6.05	0.80	6
A4G0605M06U08GUP KCP25 »	6.05	0.80	6
A4G0605M06U12GUP KCP10 »	6.05	1.20	6
A4G0605M06U12GUP KCP25 »	6.05	1.20	6
A4G0805M08U08GUP KCP10 »	8.05	0.80	8
A4G0805M08U08GUP KCP25 »	8.05	0.80	8
A4G0805M08U12GUP KCP10 »	8.05	1.20	8
A4G0805M08U12GUP KCP25 »	8.05	1.20	8
A4G1005M10U08GUP KCP10 »	10.05	0.80	10
A4G1005M10U08GUP KCP25 »	10.05	0.80	10
A4G1005M10U12GUP KCP10 »	10.05	1.20	10
A4G1005M10U12GUP KCP25 »	10.05	1.20	10

A4G-P-GMN

Square insert with GMN(Grooving and turning medium machining stable cutting edge) chipbreaker

Product Code	W	Radius	Seat
A4G094I2BP05GMN KC5010 »	2.39	0.20	2B
A4G125I03P05GMN KC5010 »	3.18	0.20	3
A4G125I03P05GMN KC5025 »	3.18	0.20	3
A4G125I03P1GMN KC5010 »	3.18	0.40	3
A4G125I03P1GMN KC5025 »	3.18	0.40	3
A4G187I04P1GMN KC5010 »	4.76	0.40	4
A4G187I04P2GMN KC5010 »	4.76	0.80	4
A4G187I04P2GMN KC5025 »	4.76	0.80	4
A4G250I06P1GMN KC5010 »	6.35	0.40	6
A4G250I06P2GMN KC5010 »	6.35	0.80	6
A4G312I08P1GMN KC5010 »	7.94	0.40	8
A4G312I08P2GMN KC5025 »	7.94	0.80	8
A4G375I10P1GMN KC5010 »	9.53	0.40	10
A4G375I10P2GMN KC5010 »	9.53	0.80	10
A4G375I10P2GMN KC5025 »	9.53	0.80	10

A4R-P-GMP

Full Radius insert with GMP(Grooving and turning medium positive rake angle) chipbreaker

Product Code	W	Radius	Seat
A4R0200M02P00GMP KC5010 »	2.00		2
A4R0200M02P00GMP KC5025 »	2.00		2

A4R-U-GMN

Full Radius insert with GMN(Grooving and turning medium machining stable cutting edge) chipbreaker

Product Code	W	Radius	Seat
A4R0205M02U00GMN KC5010 »	2.05	1.10	2
A4R0205M02U00GMN KC5025 »	2.05	1.10	2
A4R0205M02U00GMN KC9110 »	2.05	1.10	2
A4R0205M02U00GMN KCP10 »	2.05	1.10	2