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LH Taps, Metric and Pipe Sizes

HS Metric Left Hand Taps

Metric Left Hand Plug taps. High Speed Steel. Ground Thread.

Our metric fractional high speed steel left hand taps are Plug style only.
These are the most common style of left hand metric taps, with 3-4 lead threads ground.
To determine the proper drill size for a metric hole-to-be-tapped, just subtract the pitch of the tap from the diameter of the tap to yield the drill diameter. As an example: a hole-to-be-tapped as 4mm x .7 needs to be drilled with a 3.3mm drill bit.

Follow this link to see the corresponding Dies for these Taps..

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description MM Dia. MM Pitches

$17.90 TAML-1.7-.35
1.7mm x .35 HS LEFT HAND Tap, 0336-1500 1.7 mm .35

$17.90 TAML-2-.4
2mm x .4 HS LEFT HAND Tap, 0336-1505 2 mm .4

$12.50 TAML-2.6-.45
2.6mm x .45 HS LEFT HAND Tap, 0336-1510 2.6 mm .45

$10.25 TAML-3-.5
3mm x .5 HS LEFT HAND Tap, 0336-1515 3 mm .5

$10.00 TAML-3.5-.6
3.5mm x .6 HS LEFT HAND Tap, 0336-1520 3.5 mm .6

$10.00 TAML-4-.7
4mm x .7 HS LEFT HAND Tap, 0336-1525 4 mm .7

$9.85 TAML-5-.8
5mm x .8 HS LEFT HAND Tap, 0336-1530 5 mm .8

$11.75 TAML-6-1
6mm x 1.0 HS LEFT HAND Tap, 0336-0500 6 mm 1

$12.85 TAML-7-1
7mm x 1.0 HS LEFT HAND Tap, 0336-0505 7 mm 1

$10.85 TAML-8-1
8mm x 1.0 HS LEFT HAND Tap 8 mm 1.0

$12.85 TAML-8-1.25
8mm x 1.25 HS LEFT HAND Tap, 0336-0510 8 mm 1.25

$12.85 TAML-9-1.25
9mm x 1.25 HS LEFT HAND Tap, 0336-1540 9 mm 1.25

$17.25 TAML-10-1.25
10mm x 1.25 HS LEFT HAND Tap, 0336-0525 10 mm 1.25

$17.25 TAML-10-1.5
10mm x 1.5 HS LEFT HAND Tap, 0336-0520 10 mm 1.5

$17.50 TAML-11-1
11mm x 1.0 HS LEFT HAND Tap, 0336-1550 11 mm 1.0
Out of stock
$17.50 TAML-11-1.5
11mm x 1.5 HS LEFT HAND Tap, 0336-1555 11 mm 1.5

$21.15 TAML-12-1.25
12mm x 1.25 HS LEFT HAND Tap, 0336-0535 12 mm 1.25

$21.15 TAML-12-1.5
12mm x 1.5 HS LEFT HAND Tap, 0336-1560 12 mm 1.5

$21.15 TAML-12-1.75
12mm x 1.75 HS LEFT HAND Tap, 0336-0530 12 mm 1.75
Out of stock
$27.95 TAML-14-1
14mm x 1.0 HS LEFT HAND Tap, 0336-0547 14 mm 1.0

$27.95 TAML-14-1.25
14mm x 1.25 HS LEFT HAND Tap, 0336-1565 14 mm 1.25

$27.95 TAML-14-1.5
14mm x 1.5 HS LEFT HAND Tap, 0336-0545 14 mm 1.5

$27.95 TAML-14-2
14mm x 2.0 HS LEFT HAND Tap, 0336-0540 14 mm 2

$32.75 TAML-16-1.5
16mm x 1.5 HS LEFT HAND Tap, 0336-0555 16 mm 1.5

$32.75 TAML-16-2
16mm x 2.0 HS LEFT HAND Tap, 0336-0550 16 mm 2

$36.35 TAML-18-1.5
18mm x 1.5 HS LEFT HAND Tap, 0336-1580 18 mm 1.5

$36.35 TAML-18-2
18mm x 2.0 HS LEFT HAND Tap 18 mm 2

$36.35 TAML-18-2.5
18mm x 2.5 HS LEFT HAND Tap, 0336-1585 18 mm 2.5

$52.50 TAML-20-1.5
20mm x 1.5 HS LEFT HAND Tap, 0336-1590 20 mm 1.5

$52.50 TAML-20-2.5
20mm x 2.5 HS LEFT HAND Tap, 0336-1595 20 mm 2.5

$56.40 TAML-22-1.5
22mm x 1.5 HS LEFT HAND Tap, 0336-1600 22 mm 1.5

$56.40 TAML-22-2.5
22mm x 2.5 HS LEFT HAND Tap, 0336-1605 22 mm 2.5
Out of stock
$88.60 TAML-24-1.5
24mm x 1.5 HS LEFT HAND Tap 24 mm 1.5

$88.60 TAML-24-2
24mm x 2.0 HS LEFT HAND Tap, 0336-1610 24 mm 2.0

$88.60 TAML-24-3
24mm x 3.0 HS LEFT HAND Tap 24 mm 3.0

Left Hand High Speed Steel NPT Taper Pipe Taps

National Pipe Taper. Left hand NPT taper pipe taps = 3/4" per foot taper.
High Speed Steel.
Left Hand Threads

Follow this link to see more technical info and dimensions of taper pipe threads on Wikipedia.

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Size-Thread Drill Size

$14.10 NPTLH-1/16
1/16"-27 LEFT Hand HSS NPT Tap 9157-0005 1/16 - 27 --

$14.10 NPTLH-1/8
1/8"-27 LEFT Hand HSS NPT Tap 9157-0010 1/8 - 27 R

$16.80 NPTLH-1/4
1/4"-18 LEFT Hand HSS NPT Tap 9157-0015 1/4 - 18 7/16"

$21.70 NPTLH-3/8
3/8"-18 LEFT Hand HSS NPT Tap 9157-0020 3/8 - 18 37/64"
Out of stock
$30.40 NPTLH-1/2
1/2"-14 LEFT Hand HSS NPT Tap 9157-0025 1/2 - 14 23/32"

$44.90 NPTLH-3/4
3/4"-14 LEFT Hand HSS NPT Tap 9157-0030 3/4 - 14 59/64"
Out of stock
$72.20 NPTLH-1
1"-11 1/2 LEFT Hand HSS NPT Tap 9157-0035 1 - 11 1/2 1-5/32"

$104.00 NPTLH-1-1/4
1-1/4"-11 1/2 LEFT Hand HSS NPT Tap 9157-0040 1-1/4 - 11-1/2 1-1/2"

$134.00 NPTLH-1-1/2
1-1/2"-11 1/2 LEFT Hand HSS NPT Tap 9157-0045 1-1/2 - 11-1/2 1-47/64"

$238.00 NPTLH-2
2"-11 1/2 LEFT Hand HSS NPT Tap 9157-0050 2 - 11 1/2 2-7/32"

Left Hand Carbon Steel NPT Taper Pipe Taps

National Pipe Taper. NPT= 3/4" per foot taper.
Carbon Steel.
Special price, limited to quantity in stock.

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Size-Thread
Out of stock
$6.75 NPTLHC-1/16
1/16"-27 Left Hand CS NPT Tap (LIMITED QUANTITY) 1/16 - 27
Out of stock
$6.75 NPTLHC-1/8
1/8"-27 Left Hand CS NPT Tap (LAST ONE) 1/8 - 27
Out of stock
$14.00 NPTLHC-1/2
1/2"-14 Left Hand CS NPT Tap (LIMITED QUANTITY) 1/2 - 14

Tapfree 2 Cutting Fluid

We have temporarily removed these items from our catalog while we re-organize our inventory.
Tapfree 2 Cutting Fluid.
For all metals except magnesium.
Environmentally safe, water-based fluid.
Used for tapping, milling, drilling, etc.
Quickly penetrates to the cutting edge and reduces friction and heat generated during cutting.
Safer than chlorinated solvents or oils.
Intended to be used full strength (primarily through misting or direct application), and not in recirculators. The viscosity of these fluids makes pumping difficult.

Please note: these cutting and tapping fluids ship by GROUND ONLY !
These products are NOT available for export.
Quantity Price Model Description
Out of stock
$11.16 CF-T2-PT
Tapfree 2, Pint WT:6720-70
Out of stock
$62.40 CF-T2-GA
Tapfree 2, Gallon

Straight Tap Wrenches

Straight-arm tap wrenches.
Straight tap wrenches provide greater force than t-handle tap wrenches.

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Hand Taps # Size Taps Pipe Taps MM Taps Approx. Length

$5.20 STW-A
1/16" - 1/4" Straight Tap Wrench 0373-0005 1/16" - 1/4" 0-14 - 1 -5mm 7"

$7.20 STW-B
1/16" - 3/8" Straight Tap Wrench 0373-0010 1/16" - 3/8" 4-14 1/16" 3 - 9mm 8"

$8.50 STW-C
5/32" - 1/2" Straight Tap Wrench 0373-0015 5/32" - 1/2" 7-14 1/16-1/8" 4 - 12mm 10-12" (varies)

$12.50 STW-D
3/16" - 3/4" Straight Tap Wrench 0373-0020 3/16" - 3/4" 10-14 1/16 - 1/4" 5 - 18mm 13"

$17.50 STW-E
1/4" - 1-1/8" Straight Tap Wrench 0373-0025 1/4" - 1 1/8" - 1/8 - 1/2" 6 - 28mm 19"

$54.00 STW-G
3/4" - 1-1/2" Straight Tap Wrench 0373-0050 3/4" - 1 1/2" - 3/8 - 1 1/4" 19 - 38mm 35"

$96.00 STW-H
1" - 2-1/2" Straight Tap Wrench 0373-0060 1" - 2 1/2" - 3/4 - 2" 25 -65mm 55"