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HS Metric Spiral Point Taps

HS Metric Spiral Point Taps

Metric Spiral Point taps. High Speed Steel. Ground Thread.

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.

Basic tap types:
Taper tap: 5-6 lead threads ground. The easiest tap for starting to thread a hole.
Plug tap: 3-4 lead threads ground. The most common tap: a "middle ground" tap for threading.
Bottoming tap: 1-2 lead threads ground. Used for continuing to thread a blind hole close to the bottom of the hole. It's difficult to start threading a hole with this tap.
Spiral Point tap: A tap with a chisled point that pushes metal chips ahead of the forming threads. Extremely useful for tapping through-holes (ie holes that extend through the work.) Often machine-driven. Spiral Point taps are not recommended for use in blind holes: the accumulation of chips can tend to bind and break these taps more easily than others.

Follow this link to see the corresponding Metric 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

$5.50 TAMG-3-.5
3mm x .5 HSS Spiral Point Tap 0351-0525 3 mm .5

$5.50 TAMG-3.5-.6
3.5mm x .6 HSS Spiral Point Tap 0351-0530 3.5 mm .6

$5.20 TAMG-4-.7
4mm x .7 HSS Spiral Point Tap 0351-0535 4 mm .7

$5.20 TAMG-5-.8
5mm x .8 HSS Spiral Point Tap 0351-0550 5 mm .8

$52.00 TAMG-6-1
6mm x 1.0 HSS Spiral Point Tap 0351-0560 6 mm 1

$5.50 TAMG-7-1
7mm x 1.0 HSS Spiral Point Tap 0351-0575 7 mm 1

$5.50 TAMG-8-1
8mm x 1.0 HSS Spiral Point Tap 0351-0585 8 mm 1

$5.50 TAMG-8-1.25
8mm x 1.25 HSS Spiral Point Tap 0351-0580 8 mm 1.25

$9.90 TAMG-10-1.25
10mm x 1.25 HSS Spiral Point Tap 0351-0595 10 mm 1.25

$9.90 TAMG-10-1.5
10mm x 1.5 HSS Spiral Point Tap 0351-0590 10 mm 1.5

$11.50 TAMG-12-1.25
12mm x 1.25 HSS Spiral Point Tap 0351-0615 12 mm 1.25

$11.50 TAMG-12-1.75
12mm x 1.75 HSS Spiral Point Tap 0351-0605 12 mm 1.75

$15.90 TAMG-14-1.5
14mm x 1.5 HSS Spiral Point Tap 0351-0625 14 mm 1.5

$15.90 TAMG-14-2
14mm x 2 HSS Spiral Point Tap 0351-0620 14 mm 2

$18.59 TAMG-16-1.5
16mm x 1.5 HSS Spiral Point Tap 0351-0640 16 mm 1.5

$18.59 TAMG-16-2
16mm x 2 HSS Spiral Point Tap 0351-0635 16 mm 2

$27.60 TAMG-18-2.5
18mm x 2.5 HSS Spiral Point Tap 0351-0645 18 mm 2.5

$36.75 TAMG-20-2.5
20mm x 2.5 HSS Spiral Point Tap 0351-0650 20 mm 2.5