Stop-Countersink™ HSS

310 products available - Order by EDP Number

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About Stop-Countersink™ HSS

HSS Chatter-Free stop-countersink cutters, also known as aircraft style stop-countersinks. Each piloted cutter threads into a Severance Micro-Stop countersink unit, which sets and holds the depth of cut for consistent, repeatable countersinks. The patented 4-flute Chatter-Free flute design gives smooth finishes, fast production and quick chip removal. Special pilot sizes, angles, forms and no-pilot cutters are available on request.

Made in High-Speed Steel. Carbide versions are on the carbide stop-countersink page, and the units on the stop unit page.

Ordering Tip

All tools are ordered by their EDP Number (Electronic Data Processing). Find your tool in the table below and use the EDP number when placing orders with your distributor.

Stop-Countersink HSS with Micrometer Stop

Quick Facts

310 products in this group
Made in Saginaw, Michigan
Precision ground to exacting tolerances
Available through authorized distributors
Resharpenable for extended life

Download Full Catalog (PDF)

Available Products

All EDP numbers listed below. Request a quote for any EDP, or find a stocking distributor.

SC-6 Cutters (3/8" Body)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
3/8"	3/32" (.0938)	1/4"-28	1-5/32"	SC-6	15340	15485	15629	15774	15919
3/8"	#40 (.0980)	1/4"-28	1-5/32"	SC-6	15341	15486	15630	15775	15920
3/8"	1/8" (.1250)	1/4"-28	1-5/32"	SC-6	15342	15487	15631	15776	15921
3/8"	#30 (.1285)	1/4"-28	1-5/32"	SC-6	15343	15488	15632	15777	15922
3/8"	5/32" (.1562)	1/4"-28	1-5/32"	SC-6	15345	15489	15634	15779	15924
3/8"	#21 (.1590)	1/4"-28	1-5/32"	SC-6	15346	15490	15635	15780	15925
3/8"	3/16" (.1875)	1/4"-28	1-5/32"	SC-6	15347	15491	15636	15781	15926
3/8"	#10 (.1935)	1/4"-28	1-5/32"	SC-6	15348	15492	15637	15782	15927

SC-7 Cutters (7/16" Body)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
7/16"	3/32" (.0938)	1/4"-28	1-5/32"	SC-7	15350	15494	15639	15784	15929
7/16"	#40 (.0980)	1/4"-28	1-5/32"	SC-7	15351	15495	15640	15785	15930
7/16"	1/8" (.1250)	1/4"-28	1-5/32"	SC-7	15352	15496	15641	15786	15931
7/16"	#30 (.1285)	1/4"-28	1-5/32"	SC-7	15353	15497	15642	15787	15932
7/16"	5/32" (.1562)	1/4"-28	1-5/32"	SC-7	15355	15499	15644	15789	15934
7/16"	#21 (.1590)	1/4"-28	1-5/32"	SC-7	15356	15500	15645	15790	15935
7/16"	3/16" (.1875)	1/4"-28	1-5/32"	SC-7	15357	15501	15646	15791	15936
7/16"	#10 (.1935)	1/4"-28	1-5/32"	SC-7	15358	15502	15647	15792	15937

SC-8 Cutters (1/2" Body)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
1/2"	3/32" (.0938)	1/4"-28	1-5/32"	SC-8	15360	15504	15649	15794	15939
1/2"	#40 (.0980)	1/4"-28	1-5/32"	SC-8	15361	15505	15650	15795	15940
1/2"	1/8" (.1250)	1/4"-28	1-5/32"	SC-8	15362	15506	15651	15796	15941
1/2"	#30 (.1285)	1/4"-28	1-5/32"	SC-8	15363	15507	15652	15797	15942
1/2"	5/32" (.1562)	1/4"-28	1-5/32"	SC-8	15364	15508	15653	15798	15943
1/2"	#21 (.1590)	1/4"-28	1-5/32"	SC-8	15366	15510	15655	15800	15945
1/2"	3/16" (.1875)	1/4"-28	1-5/32"	SC-8	15367	15511	15656	15801	15946
1/2"	#10 (.1935)	1/4"-28	1-5/32"	SC-8	15368	15512	15657	15802	15947
1/2"	7/32" (.2187)	1/4"-28	1-5/32"	SC-8	15369	15513	15658	15803	15948
1/2"	1/4" (.2500)	1/4"-28	1-5/32"	SC-8	15370	15514	15659	15804	15949

SC-10 Cutters (5/8" Body)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
5/8"	1/8" (.1250)	1/4"-28	1-5/32"	SC-10	15372	15516	15661	15806	15951
5/8"	#30 (.1285)	1/4"-28	1-5/32"	SC-10	15373	15517	15662	15807	15952
5/8"	5/32" (.1562)	1/4"-28	1-5/32"	SC-10	15374	15518	15663	15808	15953
5/8"	#21 (.1590)	1/4"-28	1-5/32"	SC-10	15375	15519	15664	15809	15954
5/8"	3/16" (.1875)	1/4"-28	1-5/32"	SC-10	15376	15520	15665	15810	15955
5/8"	#10 (.1935)	1/4"-28	1-5/32"	SC-10	15378	15522	15667	15812	15957
5/8"	7/32" (.2187)	1/4"-28	1-5/32"	SC-10	15379	15523	15668	15813	15958
5/8"	1/4" (.2500)	1/4"-28	1-5/32"	SC-10	15380	15524	15669	15814	15959
5/8"	5/16" (.3125)	1/4"-28	1-5/32"	SC-10	15381	15525	15670	15815	15960
5/8"	3/8" (.3750)	1/4"-28	1-5/32"	SC-10	15382	15526	15671	15816	15961

SC-12 Cutters (3/4" Body, 1/4"-28 Thread)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
3/4"	5/32" (.1562)	1/4"-28	1-3/16"	SC-12	15384	15528	15673	15818	15963
3/4"	#21 (.1590)	1/4"-28	1-3/16"	SC-12	15385	15529	15674	15819	15964
3/4"	3/16" (.1875)	1/4"-28	1-3/16"	SC-12	15386	15530	15675	15820	15965
3/4"	#10 (.1935)	1/4"-28	1-3/16"	SC-12	15387	15531	15676	15821	15966
3/4"	7/32" (.2187)	1/4"-28	1-3/16"	SC-12	15389	15533	15678	15823	15968
3/4"	1/4" (.2500)	1/4"-28	1-3/16"	SC-12	15390	15534	15679	15824	15969
3/4"	"F" (.2570)	1/4"-28	1-3/16"	SC-12	15391	15535	15680	15825	15970
3/4"	5/16" (.3125)	1/4"-28	1-3/16"	SC-12	15392	15536	15681	15826	15971
3/4"	3/8" (.3750)	1/4"-28	1-3/16"	SC-12	15393	15537	15682	15827	15972

S3-12 Cutters (3/4" Body, 3/8"-24 Thread)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
3/4"	5/32" (.1562)	3/8"-24	1-3/16"	S3-12	15395	15539	15684	15829	15974
3/4"	#21 (.1590)	3/8"-24	1-3/16"	S3-12	15396	15540	15685	15830	15975
3/4"	3/16" (.1875)	3/8"-24	1-3/16"	S3-12	15397	15541	15686	15831	15976
3/4"	#10 (.1935)	3/8"-24	1-3/16"	S3-12	15398	15542	15687	15832	15977
3/4"	7/32" (.2187)	3/8"-24	1-3/16"	S3-12	15400	15544	15689	15834	15979
3/4"	1/4" (.2500)	3/8"-24	1-3/16"	S3-12	15401	15545	15690	15835	15980
3/4"	"F" (.2570)	3/8"-24	1-3/16"	S3-12	15402	15546	15691	15836	15981
3/4"	5/16" (.3125)	3/8"-24	1-3/16"	S3-12	15403	15547	15692	15837	15982
3/4"	3/8" (.3750)	3/8"-24	1-3/16"	S3-12	15404	15548	15693	15838	15983

SC-20 Cutters (1-1/4" Body, 7/16"-20 Thread)

Body Dia.	Pilot Dia.	Thread	OAL	Tool Name	78° EDP	82° EDP	90° EDP	100° EDP	120° EDP
1-1/4"	3/16" (.1875)	7/16"-20	1-3/8"	SC-20	15406	15550	15695	15840	15985
1-1/4"	#10 (.1935)	7/16"-20	1-3/8"	SC-20	15407	15551	15696	15841	15986
1-1/4"	7/32" (.2187)	7/16"-20	1-3/8"	SC-20	15408	15552	15697	15842	15987
1-1/4"	1/4" (.2500)	7/16"-20	1-3/8"	SC-20	15409	15553	15698	15843	15988
1-1/4"	"F" (.2570)	7/16"-20	1-3/8"	SC-20	15411	15555	15700	15845	15990
1-1/4"	5/16" (.3125)	7/16"-20	1-3/8"	SC-20	15412	15556	15701	15846	15991
1-1/4"	3/8" (.3750)	7/16"-20	1-3/8"	SC-20	15413	15557	15702	15847	15992
1-1/4"	1/2" (.5000)	7/16"-20	1-3/8"	SC-20	15414	15558	15703	15848	15993

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Made in Saginaw, Michigan, USA
Originators of Midget Mills®, since 1931
No minimum order on catalog items
Regrind turnaround 1-3 weeks

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