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.

A4R-U-GMN

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

Product Code	W	Radius	Seat
A4R1005M10U00GMN KCU25 »	10.05	5.00	10
A4R1005M10U00GMN KCU10 »	10.05	5.00	10
A4R1005M10U00GMN KCP25 »	10.05	5.00	10
A4R1005M10U00GMN KC9125 »	10.05	5.00	10
A4R1005M10U00GMN KC5010 »	10.05	5.00	10
A4R0805M08U00GMN KCU25 »	8.05	5.00	8
A4R0805M08U00GMN KCU10 »	8.05	5.00	8
A4R0805M08U00GMN KCP25 »	8.05	5.00	8
A4R0805M08U00GMN KCP10 »	8.05	4.00	8
A4R0805M08U00GMN KC9125 »	8.05	4.00	8
A4R0805M08U00GMN KC9110 »	8.05	4.00	8
A4R0805M08U00GMN KC5025 »	8.05	4.00	8
A4R0805M08U00GMN KC5010 »	8.05	4.00	8
A4R0605M06U00GMN KCU25 »	6.05	4.00	6
A4R0605M06U00GMN KCU10 »	6.05	3.00	6
A4R0605M06U00GMN KCP25 »	6.05	3.00	6
A4R0605M06U00GMN KCP10 »	6.05	3.00	6
A4R0605M06U00GMN KC9125 »	6.05	3.00	6
A4R0605M06U00GMN KC9110 »	6.05	3.00	6
A4R0605M06U00GMN KC5025 »	6.05	3.00	6
A4R0605M06U00GMN KC5010 »	6.05	3.00	6
A4R0505M05U00GMN KCU25 »	5.05	2.50	5
A4R0505M05U00GMN KCU10 »	5.05	2.50	5
A4R0505M05U00GMN KCP25 »	5.05	2.50	5
A4R0505M05U00GMN KCP10 »	5.05	2.50	5
A4R0505M05U00GMN KC9125 »	5.05	2.50	5
A4R0505M05U00GMN KC9110 »	5.05	2.50	5
A4R0505M05U00GMN KC5025 »	5.05	2.50	5
A4R0505M05U00GMN KC5010 »	5.05	2.50	5
A4R0405M04U00GMN KCU25 »	4.05	2.00	4
A4R0405M04U00GMN KCU10 »	4.05	2.00	4
A4R0405M04U00GMN KCP25 »	4.05	2.00	4
A4R0405M04U00GMN KCP10 »	4.05	2.00	4
A4R0405M04U00GMN KC9125 »	4.05	2.00	4
A4R0405M04U00GMN KC9110 »	4.05	2.00	4
A4R0405M04U00GMN KC5025 »	4.05	2.00	4
A4R0405M04U00GMN KC5010 »	4.05	2.00	4
A4R0305M03U00GMN KCU25 »	3.05	1.50	3
A4R0305M03U00GMN KCU10 »	3.05	1.50	3
A4R0305M03U00GMN KCP25 »	3.05	1.50	3
A4R0305M03U00GMN KCP10 »	3.05	1.50	3
A4R0305M03U00GMN KC9125 »	3.05	1.50	3
A4R0305M03U00GMN KC9110 »	3.05	1.50	3
A4R0305M03U00GMN KC5025 »	3.05	1.50	3
A4R0305M03U00GMN KC5010 »	3.05	1.50	3
A4R0205M02U00GMN KCU25 »	2.05	1.10	2
A4R0205M02U00GMN KCU10 »	2.05	1.10	2
A4R0205M02U00GMN KCP10 »	2.05	1.10	2
A4R0205M02U00GMN KC9110 »	2.05	1.10	2
A4R0205M02U00GMN KC5025 »	2.05	1.10	2
A4R0205M02U00GMN KC5010 »	2.05	1.10	2

A4R-P-GMP

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

Product Code	W	Seat
A4R1000M10P00GMP K313 »	10.00	10
A4R0800M08P00GMP KCU25 »	8.00	8
A4R0800M08P00GMP KCU10 »	8.00	8
A4R0800M08P00GMP KC5010 »	8.00	8
A4R0800M08P00GMP K313 »	8.00	8
A4R0600M06P00GMP KCU25 »	6.00	6
A4R0600M06P00GMP KCU10 »	6.00	6
A4R0600M06P00GMP KC5025 »	6.00	6
A4R0600M06P00GMP KC5010 »	6.00	6
A4R0500M5SP00GMP KCU25 »	5.00	5
A4R0500M05P00GMP KCU25 »	5.00	5
A4R0500M05P00GMP KCU10 »	5.00	5
A4R0500M05P00GMP KC5025 »	5.00	5
A4R0500M05P00GMP KC5010 »	5.00	5
A4R0500M05P00GMP K313 »	5.00	5
A4R0400M4SP00GMP KCU25 »	4.00	4
A4R0400M04P00GMP KCU25 »	4.00	4
A4R0400M04P00GMP KCU10 »	4.00	4
A4R0400M04P00GMP KC5025 »	4.00	4
A4R0400M04P00GMP KC5010 »	4.00	4
A4R0400M04P00GMP K313 »	4.00	4
A4R0300M3SP00GMP KCU25 »	3.00	3
A4R0300M03P00GMP KCU25 »	3.00	3
A4R0300M03P00GMP KCU10 »	3.00	3
A4R0300M03P00GMP KC5025 »	3.00	3
A4R0300M03P00GMP KC5010 »	3.00	3
A4R0300M03P00GMP K313 »	3.00	3
A4R0200M2SP00GMP KCU25 »	2.00	2
A4R0200M02P00GMP KCU25 »	2.00	2
A4R0200M02P00GMP KCU10 »	2.00	2
A4R0200M02P00GMP KC5025 »	2.00	2
A4R0200M02P00GMP KC5010 »	2.00	2

A4G-P-GMN

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

Product Code	W	Radius	Seat
A4G375I10P2GMN KCU25 »	9.53	0.80	10
A4G375I10P2GMN KCU10 »	9.53	0.80	10
A4G375I10P2GMN KC5025 »	9.53	0.80	10
A4G375I10P2GMN KC5010 »	9.53	0.80	10
A4G375I10P1GMN KC5010 »	9.53	0.40	10
A4G312I08P2GMN KC5025 »	7.94	0.80	8
A4G312I08P1GMN KCU25 »	7.94	0.40	8
A4G312I08P1GMN KC5010 »	7.94	0.40	8
A4G250I06P2GMN KCU25 »	6.35	0.80	6
A4G250I06P2GMN KCU10 »	6.35	0.80	6
A4G250I06P2GMN KC5010 »	6.35	0.80	6
A4G250I06P1GMN KCU25 »	6.35	0.40	6
A4G250I06P1GMN KCU10 »	6.35	0.40	6
A4G250I06P1GMN KC5010 »	6.35	0.40	6
A4G187I04P2GMN KCU25 »	4.76	0.80	4
A4G187I04P2GMN KCU10 »	4.76	0.80	4
A4G187I04P2GMN KC5025 »	4.76	0.80	4
A4G187I04P2GMN KC5010 »	4.76	0.80	4
A4G187I04P1GMN KCU25 »	4.76	0.40	4
A4G187I04P1GMN KCU10 »	4.76	0.40	4
A4G187I04P1GMN KC5010 »	4.76	0.40	4
A4G125I03P1GMN KCU25 »	3.18	0.40	3
A4G125I03P1GMN KCU10 »	3.18	0.40	3
A4G125I03P1GMN KC5025 »	3.18	0.40	3
A4G125I03P1GMN KC5010 »	3.18	0.40	3
A4G125I03P05GMN KCU25 »	3.18	0.20	3
A4G125I03P05GMN KCU10 »	3.18	0.20	3
A4G125I03P05GMN KC5025 »	3.18	0.20	3
A4G125I03P05GMN KC5010 »	3.18	0.20	3
A4G094I2BP05GMN KCU10 »	2.39	0.20	2B
A4G094I2BP05GMN KC5010 »	2.39	0.20	2B

A4G-U-GUP

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

Product Code	W	Radius	Seat
A4G1005M10U12GUP KCU25 »	10.05	1.20	10
A4G1005M10U12GUP KCU10 »	10.05	1.20	10
A4G1005M10U12GUP KCP25 »	10.05	1.20	10
A4G1005M10U12GUP KCP10 »	10.05	1.20	10
A4G1005M10U08GUP KCU25 »	10.05	0.80	10
A4G1005M10U08GUP KCU10 »	10.05	0.80	10
A4G1005M10U08GUP KCP25 »	10.05	0.80	10
A4G1005M10U08GUP KCP10 »	10.05	0.80	10
A4G0805M08U12GUP KCU25 »	8.05	1.20	8
A4G0805M08U12GUP KCU10 »	8.05	1.20	8
A4G0805M08U12GUP KCP25 »	8.05	1.20	8
A4G0805M08U12GUP KCP10 »	8.05	1.20	8
A4G0805M08U08GUP KCU25 »	8.05	0.80	8
A4G0805M08U08GUP KCU10 »	8.05	0.80	8
A4G0805M08U08GUP KCP25 »	8.05	0.80	8
A4G0805M08U08GUP KCP10 »	8.05	0.80	8
A4G0605M06U12GUP KCU25 »	6.05	1.20	6
A4G0605M06U12GUP KCU10 »	6.05	1.20	6
A4G0605M06U12GUP KCP25 »	6.05	1.20	6
A4G0605M06U12GUP KCP10 »	6.05	1.20	6
A4G0605M06U08GUP KCU25 »	6.05	0.80	6
A4G0605M06U08GUP KCU10 »	6.05	0.80	6
A4G0605M06U08GUP KCP25 »	6.05	0.80	6
A4G0605M06U08GUP KCP10 »	6.05	0.80	6
A4G0605M06U04GUP KCU25 »	6.05	0.40	6
A4G0605M06U04GUP KCU10 »	6.05	0.40	6
A4G0605M06U04GUP KCP25 »	6.05	0.40	6
A4G0605M06U04GUP KCP10 »	6.05	0.40	6

A4G-U-GMP

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

Product Code	W	Radius	Seat
A4G1005M10U12GMP KCP25 »	10.05	1.20	10
A4G1005M10U12GMP KC9125 »	10.05	1.20	10
A4G1005M10U12GMP KC5025 »	10.05	1.20	10
A4G1005M10U08GMP KCU25 »	10.05	0.80	10
A4G1005M10U08GMP KCU10 »	10.05	0.80	10
A4G1005M10U08GMP KC5025 »	10.05	0.80	10
A4G1005M10U08GMP KC5010 »	10.05	0.80	10
A4G0805M08U12GMP KC5025 »	8.05	1.20	8
A4G0805M08U08GMP KCU25 »	8.05	0.80	8
A4G0805M08U08GMP KCP25 »	8.05	0.80	8
A4G0805M08U08GMP KCP10 »	8.05	0.80	8
A4G0805M08U08GMP KC9125 »	8.05	0.80	8
A4G0805M08U08GMP KC9110 »	8.05	0.80	8
A4G0805M08U08GMP KC5025 »	8.05	0.80	8
A4G0605M06U12GMP KCU10 »	6.05	1.20	6
A4G0605M06U12GMP KC5025 »	6.05	1.20	6
A4G0605M06U12GMP KC5010 »	6.05	1.20	6
A4G0605M06U08GMP KT315 »	6.05	0.80	6
A4G0605M06U08GMP KCU25 »	6.05	0.80	6
A4G0605M06U08GMP KCU10 »	6.05	0.80	6
A4G0605M06U08GMP KCP25 »	6.05	0.80	6
A4G0605M06U08GMP KCP10 »	6.05	0.80	6
A4G0605M06U08GMP KC9125 »	6.05	0.80	6
A4G0605M06U08GMP KC9110 »	6.05	0.80	6
A4G0605M06U08GMP KC5025 »	6.05	0.80	6
A4G0605M06U08GMP KC5010 »	6.05	0.80	6
A4G0605M06U04GMP KCU25 »	6.05	0.40	6
A4G0605M06U04GMP KCU10 »	6.05	0.40	6
A4G0605M06U04GMP KCP25 »	6.05	0.40	6
A4G0605M06U04GMP KCP10 »	6.05	0.40	6
A4G0605M06U04GMP KC9125 »	6.05	0.40	6
A4G0605M06U04GMP KC9110 »	6.05	0.40	6
A4G0605M06U04GMP KC5025 »	6.05	0.40	6
A4G0605M06U04GMP KC5010 »	6.05	0.40	6

A4G-U-GMN

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

Product Code	W	Radius	Seat
A4G1005M10U12GMN KCP25 »	10.05	1.20	10
A4G1005M10U12GMN KCP10 »	10.05	1.20	10
A4G1005M10U12GMN KC9125 »	10.05	1.20	10
A4G1005M10U12GMN KC9110 »	10.05	1.20	10
A4G1005M10U12GMN KC5025 »	10.05	1.20	10
A4G1005M10U08GMN KCU25 »	10.05	0.80	10
A4G1005M10U08GMN KCP25 »	10.05	0.80	10
A4G1005M10U08GMN KCP10 »	10.05	0.80	10
A4G1005M10U08GMN KC9125 »	10.05	0.80	10
A4G1005M10U08GMN KC9110 »	10.05	0.80	10
A4G1005M10U08GMN KC5025 »	10.05	0.80	10
A4G0805M08U12GMN KCU25 »	8.05	1.20	8
A4G0805M08U12GMN KCU10 »	8.05	1.20	8
A4G0805M08U12GMN KCP25 »	8.05	1.20	8
A4G0805M08U12GMN KCP10 »	8.05	1.20	8
A4G0805M08U12GMN KC9125 »	8.05	1.20	8
A4G0805M08U12GMN KC9110 »	8.05	1.20	8
A4G0805M08U12GMN KC5010 »	8.05	1.20	8
A4G0805M08U08GMN KCU25 »	8.05	0.80	8
A4G0805M08U08GMN KCU10 »	8.05	0.80	8
A4G0805M08U08GMN KCP25 »	8.05	0.80	8
A4G0805M08U08GMN KCP10 »	8.05	0.80	8
A4G0805M08U08GMN KC9125 »	8.05	0.80	8
A4G0805M08U08GMN KC9110 »	8.05	0.80	8
A4G0805M08U08GMN KC5010 »	8.05	0.80	8
A4G0605M06U12GMN KCU25 »	6.05	1.20	6
A4G0605M06U12GMN KCU10 »	6.05	1.20	6
A4G0605M06U12GMN KCP25 »	6.05	1.20	6
A4G0605M06U12GMN KC9125 »	6.05	1.20	6
A4G0605M06U12GMN KC5025 »	6.05	1.20	6
A4G0605M06U12GMN KC5010 »	6.05	1.20	6
A4G0605M06U08GMN KCU25 »	6.05	0.80	6
A4G0605M06U08GMN KCU10 »	6.05	0.80	6
A4G0605M06U08GMN KCP25 »	6.05	0.80	6
A4G0605M06U08GMN KCP10 »	6.05	0.80	6
A4G0605M06U08GMN KC9125 »	6.05	0.80	6
A4G0605M06U08GMN KC9110 »	6.05	0.80	6
A4G0605M06U08GMN KC5025 »	6.05	0.80	6
A4G0605M06U08GMN KC5010 »	6.05	0.80	6
A4G0605M06U04GMN KCU25 »	6.05	0.40	6
A4G0605M06U04GMN KCU10 »	6.05	0.40	6
A4G0605M06U04GMN KCP25 »	6.05	0.40	6
A4G0605M06U04GMN KCP10 »	6.05	0.40	6
A4G0605M06U04GMN KC9125 »	6.05	0.40	6
A4G0605M06U04GMN KC9110 »	6.05	0.40	6
A4G0605M06U04GMN KC5025 »	6.05	0.40	6
A4G0605M06U04GMN KC5010 »	6.05	0.40	6

A4G-P-GUP

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

Product Code	W	Radius	Seat
A4G1000M10P12GUP KU10 »	10.00	1.20	10
A4G1000M10P12GUP KCU25 »	10.00	1.20	10
A4G1000M10P12GUP KCU10 »	10.00	1.20	10
A4G1000M10P08GUP KU10 »	10.00	0.80	10
A4G1000M10P08GUP KCU25 »	10.00	0.80	10
A4G1000M10P08GUP KCU10 »	10.00	0.80	10
A4G0800M08P12GUP KU10 »	8.00	1.20	8
A4G0800M08P12GUP KCU25 »	8.00	1.20	8
A4G0800M08P12GUP KCU10 »	8.00	1.20	8
A4G0800M08P08GUP KU10 »	8.00	0.80	8
A4G0800M08P08GUP KCU25 »	8.00	0.80	8
A4G0800M08P08GUP KCU10 »	8.00	0.80	8
A4G0600M06P08GUP KU10 »	6.00	0.80	6
A4G0600M06P08GUP KCU25 »	6.00	0.80	6
A4G0600M06P08GUP KCU10 »	6.00	0.80	6

A4G-P-GMP

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

Product Code	W	Radius	Seat
A4G1000M10P12GMP KCU10 »	10.00	1.20	10
A4G1000M10P12GMP KC5010 »	10.00	1.20	10
A4G1000M10P08GMP KCU25 »	10.00	0.80	10
A4G1000M10P08GMP KCU10 »	10.00	0.80	10
A4G1000M10P08GMP KC5010 »	10.00	0.80	10
A4G1000M10P08GMP K313 »	10.00	0.80	10
A4G0800M08P12GMP KCU10 »	8.00	1.20	8
A4G0800M08P08GMP KCU25 »	8.00	0.80	8
A4G0800M08P08GMP KCU10 »	8.00	0.80	8
A4G0800M08P08GMP KC5010 »	8.00	0.80	8
A4G0800M08P08GMP K313 »	8.00	0.80	8
A4G0600M06P08GMP KCU25 »	6.00	0.80	6