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HSS Tap

High Speed Steel Straight Flute "Hand Taps" are the most popular and versatile style of taps in general machine tapping operations. They are for general use in production tapping or hand operations in a wide range of application material groups. High Speed Steel Hand Taps are availabile in imperial and metric sizes.

Taper: 7-10 pitch chamfer length. Starts the thread square with the workpiece.

Plug: 3-5 pitch chamfer length. Generally used in through holes.

Bottoming: 1-2 pitch chamfer length. Generates the thread to the bottom.

Sets: Contains 1 each of Taper, Plug, and Bottoming.

Products
Dimensional Specifications
Tap Drill Chart

Dimensional Specifications

Dimensional SpecificationsHSS Tap

Tap Size	Thread	Drill Size	Probable % of Thread	Overall Length	Length of Thread	Number of Flutes
M1.6	.35MM	1.25MM	69-77	1 5/8	5/16	2
0	80	3/64	71-81	1 11/16	3/8	2
1	64	53	59-67	1 11/16	3/8	2
1	72	53	67-75	1 11/16	3/8	2
M2	.40MM	1/16	72-79	1 3/4	7/16	3
2	56	50	62-69	1 3/4	7/16	3
2	64	50	70-79	1 3/4	7/16	3
M2	.45MM	2.05MM	69-77	1 3/4	7/16	3
3	48	5/64	70-77	1 13/16	1/2	3
3	56	46	69-78	1 13/16	1/2	3
4	40	43	65-71	1 7/8	9/16	3
4	48	42	61-68	1 7/8	9/16	3
M3	.50MM	40	70-79	1 15/16	5/8	3
5	40	38	65-72	1 15/16	5/8	3
5	44	37	63-71	1 15/16	5/8	3
M3.5	.60MM	33	72-81	2	11/16	3
6	32	36	71-78	2	11/16	3
6	40	33	69-77	2	11/16	3
M4	.70MM	30	69	2 1/8	3/4	4
8	32	29	62-69	2 1/8	3/4	4
8	36	29	70-78	2 1/8	3/4	4
10	24	25	69-75	2 3/8	7/8	4
10	32	21	68-79	2 3/8	7/8	4
M5	.80MM	19	69	2 3/8	7/8	4
12	24	16	66-72	2 3/8	15/16	4
12	28	15	70-78	2 3/8	15/16	4
M6	1.00MM	10	76-84	2 1/2	1	4
M6	.75MM	4	73	2 1/2	1	4
1/4	20	7	70-75	2 1/2	1	4
1/4	28	3	72-80	2 1/2	1	4
5/16	18	F	72-77	2 23/32	1 1/8	4
5/16	24	1	67-75	2 23/32	1 1/8	4
M8	1.25MM	17/64	71	2 23/32	1 1/8	4
M8	1.00MM	J	66	2 23/32	1 1/8	4
3/8	16	5/16	72-77	2 15/16	1 1/4	4
3/8	24	Q	71-79	2 15/16	1 1/4	4
M10	1.00MM	8.9MM		2 15/16	1 1/4	4
M10	1.50MM	Q	75	2 15/16	1 1/4	4
M10	1.25MM	11/32	71	2 15/16	1 1/4	4
7/16	14	U	70-75	3 5/32	1 7/16	4
7/16	20	25/64	65-72	3 5/32	1 7/16	4
M12	1.75MM	13/32	69-74	4 11/16	2 7/32	4
M12	1.50MM	10.50MM		3 3/8	1 21/32	4
M12	1.25MM	27/64	72	2 15/16	1 1/4	4
1/2	13	27/64	73-78	3 3/8	1 21/32	4
1/2	20	29/64	65-72	3 3/8	1 21/32	4
M14	2.00MM	15/32	76-81	3 19/32	1 21/32	4
M14	1.50MM	12.50MM	71	3 19/32	1 21/32	4
M14	1.25MM	12.80MM		3 19/32	1 21/32	4
9/16	12	31/64	68-72	3 19/32	1 21/32	4
9/16	18	33/64	58-65	3 19/32	1 21/32	4
5/8	11	17/32	75-79	3 13/16	1 13/16	4
5/8	18	37/64	58-65	3 13/16	1 13/16	4
M16	2.00MM	35/64	76-81	3 13/16	1 13/16	4
M16	1.50MM	14.50MM	71	3 13/16	1 13/16	4
M18	2.50MM	15.80MM	77	4 1/32	1 13/16	4
M18	2.00MM	14.00MM		4 1/32	1 13/16	4
M18	1.00MM	17.00MM		4 1/32	1 13/16	4
3/4	10	21/32	68-72	4 1/4	2	4
3/4	16	11/16	71-77	4 1/4	2	4
M20	2.50MM	11/16	74-78	4 15/32	2	4
M20	1.50MM	47/64		4 15/32	2	4
M20	1.00MM	19.00MM		4 15/32	2	4
7/8	9	49/64	72-76	4 11/16	2 7/32	4
7/8	14	13/16	62-67	4 11/16	2 7/32	4
M22	2.50MM	49/64	66	4 11/16	2 7/32	4
M22	1.50MM	13/16	70	4 11/16	2 7/32	4
M24	3.00MM	53/64	72-76	4 29/32	2 7/32	4
M24	2.00MM	22.00MM		4 29/32	2 7/32	4
M24	1.50MM	57/64		4 29/32	2 7/32	4
1	8	7/8	73-77	5 1/8	2 1/2	4
1	12	59/64	67-75	5 1/8	2 1/2	4
1	14	15/16	61-67	5 1/8	2 1/2	4
M27	3.00MM	61/64	72	5 1/8	2 1/2	4
M27	2.00MM	63/64	77	5 1/8	2 1/2	4
1 1/8	7	63/64	72-76	5 7/16	2 9/16	4
1 1/8	12	1 3/64	66-72	5 7/16	2 9/16	4
M30	3.50MM	1 3/64	75	5 7/16	2 9/16	4
1 1/4	7	1 7/64	76	5 3/4	2 9/16	4
1 1/4	12	1 11/64	72	5 3/4	2 9/16	6
M33	3.50MM	1 11/64	74	5 3/4	2 9/16	4
1 3/8	6	1 7/32	72	6 1/16	3	4
1 3/8	12	1 19/64	72	6 1/16	3	6
M36	4.00MM	1 1/4	82	6 1/16	3	4
1 1/2	6	1 11/32	72	6 3/8	3	4
1 1/2	12	1 27/64	72	6 3/8	3	6

Tap Drill Chart

Tap Size	Drill Size	Probable % Thread
M1.6-0.35	.35MM	69-77
0-80	80	71-81
1-64	64	59-67
1-72	72	67-75
M2-0.4	.40MM	72-79
2-56	56	62-69
2-64	64	70-79
M2-0.45	.45MM	69-77
3-48	48	70-77
3-56	56	69-78
4-40	40	65-71
4-48	48	61-68
M3-0.5	.50MM	70-79
5-40	40	65-72
5-44	44	63-71
M3.5-0.6	.60MM	72-81
6-32	32	71-78
6-40	40	69-77
M4-0.7	.70MM	69
8-32	32	62-69
8-36	36	70-78
10-24	24	69-75
10-32	32	68-79
M5-0.8	.80MM	69
12-24	16	66-72
12-28	15	70-78
M6-1.0	10	76-84
M6-0.75	4	73
1/4-20	7	70-75
1/4-28	3	72-80
5/16-18	F	72-77
5/16-24	I	67-75
M8-1.25	17/64	71
M8-1.0	J	66
3/8-16	5/16	72-77
3/8-24	Q	71-79
M10-1.0	8.9MM
M10-1.50	Q	76-82
M10-1.25	11/32	71
7/16-14	U	70-75
7/16-20	25/64	65-72
M12-1.75	13/32	69-74
M12-1.5	10.5MM
M12-1.25	27/64	72
1/2-13	27/64	73-78

Tap Size	Drill Size	Probable % Thread
1/2-20	29/64	65-72
M14-2.0	15/32	76-81
M14-1.5	12.5MM	71
M14-1.25	12.8MM
9/16-12	31/64	68-72
9/16-18	33/64	58-65
5/8-11	17/32	75-79
5/8-18	37/64	58-65
M16-2.0	35/64	76-81
M16-1.5	14.5MM	71
M18-2.5	15.8MM	77
M18-2.0	14MM
M18-1.0	17MM
3/4-10	21/32	68-72
3/4-16	11/16	71-77
M20-2.5	11/16	74-78
M20-1.5	47/64
M20-1.0	19MM
7/8-9	49/64	72-76
7/8-14	13/16	62-67
M22-2.5	49/64	66
M22-1.5	13/16	70
M24-3.0	53/64	72-76
M24-2.0	22MM
M24-1.5	57/64
1-8	7/8	73-77
1-12	59/64	67-72
1-14	15/16	61-67
M27-3.0	61/64	72
M27-2.0	63/64	77
1-1/8-7	63/64	72-76
1-1/8-8	1	76
1-1/8-12	1-3/16	66-72
M30-3.5	1-3/64	75
1-1/4-7	1-7/64	76
1-1/4-8	1-1/8	76
1-1/4-12	1-11/64	72
M33-3.5	1-11/64	74
1-3/8-6	1-7/32	72
1-3/8-12	1-19/64	72
M36-4.0	1-1/4	82
1-1/2-6	1-11/32	72
1-1/2-8	1-3/8	76
1-1/2-12	1-27/64	72

NPT Tap Size	Taper Pipe Drill Size	Straight Pipe Drill Size
1/8-27	R	11/32
1/4-18	7/16	7/16
3/8-18	37/64	37/64
1/2-14	45/64	23/32
3/4-14	59/64	59/64
1-11.5	1-5/32	1-5/32
1-1/4-11.5	1-31/64	1-1/2
1-1/2-11.5	1-47/64	1-3/4
2-11.5	2-7/32	2-7/32

HSS Tap

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Size Tap Type Thread Pitch Item # Availability Price Quantity UOM

1/4

Bottom

TAPS025-20B

In Stock

$11.86604/EA

See Quantity Discounts

1/4-20 HIGH SPEED STEEL BOTTOM TAP

$11.86604/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$11.86604/ EA

1/4

Plug

TAPS025-20P

In Stock

$10.19756/EA

See Quantity Discounts

1/4-20 HIGH SPEED STEEL PLUG TAP

$10.19756/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$10.19756/ EA

1/4

Taper

TAPS025-20T

In Stock

$10.19532/EA

See Quantity Discounts

1/4-20 HIGH SPEED STEEL TAPER TAP

$10.19532/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$10.19532/ EA

7/16

Bottom

TAPS043-20B

In Stock

$22.19032/EA

See Quantity Discounts

7/16-20 HIGH SPEED STEEL BOTTOM TAP

$22.19032/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$22.19032/ EA

7/16

Plug

TAPS043-20P

In Stock

$22.61402/EA

See Quantity Discounts

7/16-20 HIGH SPEED STEEL PLUG TAP

$22.61402/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$22.61402/ EA

7/16

Taper

TAPS043-20T

In Stock

$19.29899/EA

See Quantity Discounts

7/16-20 HIGH SPEED STEEL TAPER TAP

$19.29899/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$19.29899/ EA

1/2

Bottom

TAPS050-20B

In Stock

$27.06644/EA

See Quantity Discounts

1/2-20 HIGH SPEED STEEL BOTTOM TAP

$27.06644/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$27.06644/ EA

1/2

Plug

TAPS050-20P

In Stock

$19.13359/EA

See Quantity Discounts

1/2-20 HIGH SPEED STEEL PLUG TAP

$19.13359/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$19.13359/ EA

1/2

Taper

TAPS050-20T

In Stock

$20.36881/EA

See Quantity Discounts

1/2-20 HIGH SPEED STEEL TAPER TAP

$20.36881/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$20.36881/ EA

HSS Tap

Technical Data

Dimensional Specifications

Dimensional SpecificationsHSS Tap

Tap Drill Chart

Tap Drill Chart

You've Selected

Tap Type

Size

Thread Pitch

Thread Type

Overall Length

1/4-20 HIGH SPEED STEEL BOTTOM TAP

1/4-20 HIGH SPEED STEEL PLUG TAP

1/4-20 HIGH SPEED STEEL TAPER TAP

7/16-20 HIGH SPEED STEEL BOTTOM TAP

7/16-20 HIGH SPEED STEEL PLUG TAP

7/16-20 HIGH SPEED STEEL TAPER TAP

1/2-20 HIGH SPEED STEEL BOTTOM TAP

1/2-20 HIGH SPEED STEEL PLUG TAP

1/2-20 HIGH SPEED STEEL TAPER TAP