Besly Popular Special Taps - Catalog No. 4124

Besly Popular Special
Straight Flute Taps

High Speed Steel
Ground Thread

Straight Flute
2, 3, 4 and 6 Flute

Metric Sizes:
M2.5 | M3 | M3.5 | M4 | M4.5 | M5 | M6 | M7 | M8 | M10 | M11 | M12 | M14 | M15 | M16 | M18 | M20 | M22 | M24 | M26 | M27 | M30 | M33 | M35 | M36 | M39 | M40 | M42

Also available...

Standard Sizes: Catl No. 4124

Left Hand: Catl No. 4124LH

Catalog Number: 4124

Besly Standard Turbo Cut® Taps
Besly Popular Special Straight Flute Taps are for general use in production tapping or hand operations. These tools are manufactured by Besly to meet the growing demand for metric sizes. Choose the plug chamfer style for thru hole applications or blind holes with sufficient clearance. The bottoming style is used for threading deep or blind holes to the bottom.

Please call 800 435-2965 for current prices.

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Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M2.5 x 0.45	.0867 x 56.44	3	Taper	D1		17912	1-13/16	1/2	.141	3/16	.110
M2.5 x 0.45	.0867 x 56.44	3	Plug	D1		17913	1-13/16	1/2	.141	3/16	.110
M2.5 x 0.45	.0867 x 56.44	3	Bot	D1		17914	1-13/16	1/2	.141	3/16	.110
M3 x 0.5	.1182 x 50.80	3	Taper	D1		17915	1-15/16	5/8	.141	3/16	.110
M3 x 0.5	.1182 x 50.80	3	Plug	D1		17916	1-15/16	5/8	.141	3/16	.110
M3 x 0.5	.1182 x 50.80	3	Bot	D1		17917	1-15/16	5/8	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Taper	D1		17918	2	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Taper	D4	6" ext	17921	6	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Taper	D11		17924	2	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Plug	D1		17919	2	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Plug	D4	6" ext	17922	6	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Plug	D11		17925	2	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Bot	D1		17920	2	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Bot	D4	6" ext	17923	6	11/16	.141	3/16	.110
M3.5 x 0.6	.1378 x 42.33	3	Bot	D11		17926	2	11/16	.141	3/16	.110
M4 x 0.7	.1575 x 36.29	4	Taper	D2		17927	2-1/8	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Taper	D4	6" ext	17930	6	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Taper	D11		17933	2-1/8	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Plug	D2		17928	2-1/8	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Plug	D4	6" ext	17931	6	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Plug	D11		17934	2-1/8	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Bot	D2		17929	2-1/8	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Bot	D4	6" ext	17932	6	3/4	.168	1/4	.131
M4 x 0.7	.1575 x 36.29	4	Bot	D11		17935	2-1/8	3/4	.168	1/4	.131

Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M4.5 x 0.75	.1772 x 33.87	4	Taper	D2		17936	2-3/8	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Taper	D4	6" ext	17939	6	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Taper	D11		17942	2-3/8	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Plug	D2		17937	2-3/8	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Plug	D4	6" ext	17940	6	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Plug	D11		17943	2-3/8	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Bot	D2		17938	2-3/8	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Bot	D4	6" ext	17941	6	7/8	.194	1/4	.152
M4.5 x 0.75	.1772 x 33.87	4	Bot	D11		17944	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Taper	D2		17945	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Taper	D4	6" ext	17948	6	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Taper	D11		17951	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Plug	D2		17946	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Plug	D4	6" ext	17949	6	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Plug	D11		17952	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Bot	D2		17947	2-3/8	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Bot	D4	6" ext	17950	6	7/8	.194	1/4	.152
M5 x 0.8	.1969 x 31.75	4	Bot	D11		17953	2-3/8	7/8	.194	1/4	.152
M5 x 0.5	.1969 x 50.80	4	Taper	D3		18033	2-3/8	7/8	.194	1/4	.152
M5 x 0.5	.1969 x 50.80	4	Plug	D3		18036	2-3/8	7/8	.194	1/4	.152
M5 x 0.5	.1969 x 50.80	4	Bot	D3		18039	2-3/8	7/8	.194	1/4	.152

Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M6 x 1.0	.2363 x 25.40	4	Taper	D3		17954	2-1/2	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Taper	D5	6" ext	17957	6	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Taper	D11		17960	2-1/2	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Plug	D3		17955	2-1/2	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Plug	D5	6" ext	17958	6	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Plug	D11		17961	2-1/2	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Bot	D3		17956	2-1/2	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Bot	D5	6" ext	17959	6	1	.255	5/16	.191
M6 x 1.0	.2363 x 25.40	4	Bot	D11		17962	2-1/2	1	.255	5/16	.191
M6 x 0.75	.2363 x 33.87	4	Taper	D3		17963	2-1/2	1	.255	5/16	.191
M6 x 0.75	.2363 x 33.87	4	Plug	D3		17964	2-1/2	1	.255	5/16	.191
M6 x 0.75	.2363 x 33.87	4	Bot	D3		17965	2-1/2	1	.255	5/16	.191
M6 x 0.5	.2363 x 50.80	4	Taper	D3		17897	2-1/2	1	.255	5/16	.191
M6 x 0.5	.2363 x 50.80	4	Plug	D3		17898	2-1/2	1	.255	5/16	.191
M6 x 0.5	.2363 x 50.80	4	Bot	D3		17899	2-1/2	1	.255	5/16	.191
M7 x 1.0	.2756 x 25.40	4	Taper	D11		17972	2-23/32	1-1/8	.318	3/8	.238
M7 x 1.0	.2756 x 25.40	4	Plug	D11		17973	2-23/32	1-1/8	.318	3/8	.238
M7 x 1.0	.2756 x 25.40	4	Bot	D11		17974	2-23/32	1-1/8	.318	3/8	.238

Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M8 x 1.25	.3150 x 20.32	4	Bot	D3		17975	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Plug	D5	6" ext	17978	6	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Bot	D11		17981	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Bot	D3		17976	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Plug	D5	6" ext	17979	6	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Bot	D11		17982	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Plug	D3		17977	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Bot	D5	6" ext	17980	6	1-1/8	.318	3/8	.238
M8 x 1.25	.3150 x 20.32	4	Bot	D11		17983	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Taper	D3		17984	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Taper	D11		17987	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Plug	D3		17976	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Plug	D11		17988	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Bot	D3		17977	2-23/32	1-1/8	.318	3/8	.238
M8 x 1.0	.3150 x 25.40	4	Bot	D11		17989	2-23/32	1-1/8	.318	3/8	.238
M8 x 0.75	.3150 x 33.87	4	Taper	D5		17997	2-23/32	1-1/8	.318	3/8	.238
M8 x 0.75	.3150 x 33.87	4	Plug	D5		18000	2-23/32	1-1/8	.318	3/8	.238
M8 x 0.75	.3150 x 33.87	4	Bot	D5		18003	2-23/32	1-1/8	.318	3/8	.238
M8 x 0.5	.3150 x 50.80	4	Plug	D4		19583	2-23/32	1-1/8	.318	3/8	.238
M8 x 0.5	.3150 x 50.80	4	Bot	D4		19584	2-23/32	1-1/8	.318	3/8	.238

Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M10 x 1.5	.3937 x 16.93	4	Taper	D3		17990	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Taper	D6	6" ext	18224	6	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Taper	D11		18227	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Plug	D3		17991	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Plug	D6	6" ext	18225	6	1-7/16	.381	7/16	.286
M10 x 1.5	.3937x 16.93	4	Plug	D11		18228	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.5	.3937x 16.93	4	Bot	D3		17992	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Bot	D6	6" ext	18226	6	1-7/16	.381	7/16	.286
M10 x 1.5	.3937 x 16.93	4	Bot	D11		18229	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Taper	D3		18230	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Taper	D11		18233	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Plug	D3		18231	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Plug	D11		18234	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Bot	D3		18232	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.25	.3937 x 20.32	4	Bot	D11		18235	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.0	.3937 x 25.40	4	Taper	D5		18138	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.0	.3937 x 25.40	4	Plug	D5		18139	3-5/32	1-7/16	.381	7/16	.286
M10 x 1.0	.3937 x 25.40	4	Bot	D5		18140	3-5/32	1-7/16	.381	7/16	.286
M11 x 1.5	.4331 x 16.93	4	Taper	D6		18236	3-3/16	1-1/2	.323	7/16	.242
M11 x 1.5	.4331 x 16.93	4	Plug	D6		18237	3-3/16	1-1/2	.323	7/16	.242
M11 x 1.5	.4331 x 16.93	4	Bot	D6		18238	3-3/16	1-1/2	.323	7/16	.242
M11 x 1.0	.4331 x 25.40	4	Taper	D5		18201	3-3/16	1-1/2	.323	7/16	.242
M11 x 1.0	.4331 x 25.40	4	Plug	D5		18204	3-3/16	1-1/2	.323	7/16	.242
M11 x 1.0	.4331 x 25.40	4	Bot	D5		18207	3-3/16	1-1/2	.323	7/16	.242

Tap Size & TPI	Inch Equivalent	No. of Flutes	Cham Type	P.D. Limits	Special Features	EDP No	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
M12 x 1.75	.4725 x 14.51	4	Taper	D3		18239	3-3/8	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Taper	D6	6" ext	18242	6	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Taper	D11		18245	3-3/8	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Plug	D3		18240	3-3/8	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Plug	D6	6" ext	18243	6	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Plug	D11		18246	3-3/8	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Bot	D3		18241	3-3/8	1-21/32	.367	7/16	.275
M12 x 1.75	.4725 x 14.51	4	Bot	D6	6" ext	18244	6