Machine tap HSCo VaryTap green blind hole DIN 371/376
Machine screw tap HSCo VaryTap green
MATAP-BLIHO-HSCO-VARYTAP-GREEN-M8
ZEBRA
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Newly developed Vario geometry
Optimised chip removal, prevents chip accumulation
Optimised cutting edge preparation thanks to multi-stage finishing process
Excellent chip removal and perfectly true-to-the-gauge threads
Extra-long groove
Optimised coolant supply and chip removal for deep threads
Angled threaded part
Reduced risk of chipping on the tool during return
Rake precisely tailored to stainless steel
Up to 50 % longer service life compared to conventional plain machine taps
Available exclusively from Würth
Product packaging made of 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® Bronze
Sufficient coolant and lubricant must be added when cutting threads.
Datasheets(X)
Thread type | Metric thread |
Material to be processed | Stainless steel, Steel |
Hole type | Blind hole ≤ 2.5xD |
Suitable for machine type | Milling/drill center, Pedestal drilling machine |
Quality | ZEBRA-Premium |
Thread type x nominal diameter | M8 |
Pitch | 1.25 mm |
Length | 90 mm |
Shank diameter | 8.0 mm |
Size of square | 6.2 mm |
DIN | 371 |
Cutting material | HSCo |
Surface | Plain |
Form | C |
Core hole diameter | 6.8 mm |
Twist angle | 45° Vario |
Shank style | Cylindrical with square drive |
Tolerance of screw taps | ISO 2X (6HX) |
Suitable for tensile strength up to | 1200 N/mm² |
Service life (points system) | 3 of 4 points |
Trueness to gauge (points system) | 4 of 4 points |
Versatility (points system) | 3 of 4 points |
Cutting behaviour (points system) | 3 of 4 points |
Chip formation (points system) | 3 of 4 points |
Material of sub-group | Stainless steels, sulphurated, Stainless steels, austenitic, Stainless steels, martensitic, General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels |
Legend |
vc = cutting speed [m/min] |
f = feed [mm/r] |
n = rotation speed [rpm] |
The suggested cutting values are reference values only and must be adapted to the respective conditions. |
For M20 | ||||||
Material designation | Tensile strength | vc | M20 | |||
n | f | |||||
from | to | from | to | |||
Steels | ||||||
Steels | < 850 N/mm² | 8 | 10 | 127 | 159 | 2.5 |
Steels | < 1,000 N/mm² | 6 | 8 | 95 | 127 | 2.5 |
Steels | < 1,200 N/mm² | 4 | 6 | 64 | 95 | 2.5 |
Stainless steels | ||||||
Stainless steels | < 850 N/mm² | 6 | 8 | 95 | 127 | 2.5 |
Stainless steels | > 850 N/mm² | 4 | 6 | 64 | 95 | 2.5 |
For M3-M5 | ||||||||||||
Material designation | Tensile strength | vc | M3 | M4 | M5 | |||||||
n | f | n | f | n | f | |||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
Steels | < 850 N/mm² | 8 | 10 | 849 | 1061 | 0.5 | 637 | 796 | 0.7 | 509 | 637 | 0.8 |
Steels | < 1,000 N/mm² | 6 | 8 | 637 | 849 | 0.5 | 477 | 637 | 0.7 | 382 | 509 | 0.8 |
Steels | < 1,200 N/mm² | 4 | 6 | 424 | 637 | 0.5 | 318 | 477 | 0.7 | 255 | 382 | 0.8 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 6 | 8 | 637 | 849 | 0.5 | 477 | 637 | 0.7 | 382 | 509 | 0.8 |
Stainless steels | > 850 N/mm² | 4 | 6 | 424 | 637 | 0.5 | 318 | 477 | 0.7 | 255 | 382 | 0.8 |
For M12-M16 | ||||||||||||
Material designation | Tensile strength | vc | M12 | M14 | M16 | |||||||
n | f | n | f | n | f | |||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
Steels | < 850 N/mm² | 8 | 10 | 212 | 265 | 1.75 | 182 | 227 | 2 | 159 | 199 | 2 |
Steels | < 1,000 N/mm² | 6 | 8 | 159 | 212 | 1.75 | 136 | 182 | 2 | 119 | 159 | 2 |
Steels | < 1,200 N/mm² | 4 | 6 | 106 | 159 | 1.75 | 91 | 136 | 2 | 80 | 119 | 2 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 6 | 8 | 159 | 212 | 1.75 | 136 | 182 | 2 | 119 | 159 | 2 |
Stainless steels | > 850 N/mm² | 4 | 6 | 106 | 159 | 1.75 | 91 | 136 | 2 | 80 | 119 | 2 |
For M6-M10 | ||||||||||||
Material designation | Tensile strength | vc | M6 | M8 | M10 | |||||||
n | f | n | f | n | f | |||||||
from | to | from | to | from | to | from | to | |||||
Steels | ||||||||||||
Steels | < 850 N/mm² | 8 | 10 | 424 | 531 | 1 | 318 | 398 | 1.25 | 255 | 318 | 1.5 |
Steels | < 1,000 N/mm² | 6 | 8 | 318 | 424 | 1 | 239 | 318 | 1.25 | 191 | 255 | 1.5 |
Steels | < 1,200 N/mm² | 4 | 6 | 212 | 318 | 1 | 159 | 239 | 1.25 | 127 | 191 | 1.5 |
Stainless steels | ||||||||||||
Stainless steels | < 850 N/mm² | 6 | 8 | 382 | 424 | 1 | 239 | 318 | 1.25 | 191 | 255 | 1.5 |
Stainless steels | > 850 N/mm² | 4 | 6 | 212 | 382 | 1 | 159 | 239 | 1.25 | 127 | 191 | 1.5 |
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