STI-Threading Tools

STI-Threading Tools

STI machine taps and STI fluteless machine taps are special threading tools for producing of internal threads for wire-thread-inserts. The STI threading tools are available in the following variations:

  • Short machine taps (Form D)
  • HSS-G Hand taps (set of 2 pieces)
  • Combined machine taps and fluteless machine taps
  • Machine taps for through and blind holes

VOELKEL Thread-cutting tools

Threading tool holder
Hand Taps
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M (metric)
Mf (metric fine)
BSW (Whitworth)
BSF (brit. standard fine)
BA (brit. assn. thread)
UNC (Unified coarse)
UNF (Unified fine)
UNEF (Unified extra fine)
American UN-8 thread
G (BSP) Pipe-thread
PG (Armoured tube thread)
Tr (trapezoidal thread)
NPT - NPF (tapered)
M (metric) left hand
Mf (metric fine) left hand
BSW (Whitworth) left hand
UNC (Unified coarse) left hand
UNF (Unified fine) left hand
G (BSP) left hand
Short Machine Taps
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M (metric)
M (ISO 529)
Mf (metric fine)
BSW - W (DIN 477)
UNC - UNF
G (BSP) Pipe-thread
Rc (BSPT) tapered
PG Armoured tube thread
NPT (tapered pipe thread)
NPT - left hand
NPS
NPTF - NPS
Bit-Edition - HexTap - TriBit
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HexTap - TriBit
Combined bits
Drill bits
Countersink bits 90°
Machine Taps
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M (metric)
M (metric) extra long
M - 6G - 7G - +0,1 - 4H
Mf (metric fine)
BSW (Whitworth)
BSF (brit. standard fine)
UNC (Unified coarse)
UNF (Unified fine)
UNEF (Unified extra fine)
8-UN - 12-UN (Unified thread)
G (BSP) Pipe-thread
Rc (BSPT) tapered
NPT (tapered pipe thread)
Rd (knuckle thread)
FG / BSC (cycle threads)
Vg (valve thread)
Combined machine taps
M (metric) left hand
Mf (metric fine) left hand
BSW (Whitworth) left hand
UNC (Unified coarse) left hand
UNF (Unified fine) left hand
G (BSP) left hand
Rp (BSPP) cylindrical
Machine Taps with coloured ring
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GREEN RING
GREEN RING PM
BLUE RING
WHITE RING
BLACK RING
RED RING
YELLOW RING
ORANGE RING
Fluteless Machine Taps
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2BX
6H ISO2
6G ISO3
Machine Nut Taps
Round Dies / Hexagon Die Nuts
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M (metric)
Mf (metric fine)
BSW (Whitworth)
BSF (brit. standard fine)
BA (brit. assn. thread)
UNC (Unified coarse)
UNF (Unified fine)
UNEF (Unified extra fine)
8-UN (Unified thread)
G (BSP) - G (BSPF)
R (BSPT) Rp (BSPP) - PF - PT
PG Armoured tube thread
NPT - NPTF - NPS
FG - BSC (cycle threads)
Vg (valve thread)
M (metric) left hand
G (BSP) left hand
Dies for left-hand threads
Tap & Die Sets
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HexTap
Hand taps
Threading tools in drilbox
Left hand (LH)
Short machine taps
Machine taps
Machine Taps TwinBox 2in1
Combined machine taps
Round dies
Hexagon die nuts
Assortments
Bit assortments
Q.C. sets
Displays
Precision Thread Gauges
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M (metric)
Mf (metric fine)
M - 6G - 7G - +0.1 - 4H
UNC (Unified coarse)
UNF (Unified fine)
G (BSP) Pipe-thread
NPT (tapered pipe thread)
STI Precision Thread Gauges

V-COIL Thread Repair System

Wire Thread Inserts
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Metric - metric fine
G (BSP) Pipe-thread
UNC (Unified coarse)
UNF (Unified fine)
UN-8 (Unified thread)
BSW (Whitworth)
BSF (brit. standard fine)
Thread Repair Kits
Thread Repair Workshop Kits
Assembling Tools
STI-Threading Tools
V-COIL rapid
V-COIL automotive
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