Get your threaded holes right first time.

Big Gator Tools know the importance of perfect accuracy, and here at CompleteTool, we promote that message.

Our tap guides — also called tap blocks or tap jigs — are designed and manufactured to ensure that you achieve that accuracy. They will steer hand-tapped threads on insides of holes to receive screws or bolts.

This handy gadget will go some of the way toward preventing tap breaks by creating the conditions for a perfectly straight hole. This also helps to lengthen the lifespan of the tap.

But its uses don't stop there; using Big Gator Tools' tap guides, you can also maintain existing or restore damaged internal threads.

  • They will work with regular-sized taps (ANSI Standard Ground Hand Taps). If you need UNC or UNF V-TapGuides, please contact us.
  • STI-UNC V-TapGuide handles 10 Unified Coarse Thread sizes (9 holes): 9/16-12, 1/2-13, 7/16-14, 3/8-16, 5/6-18, 1/4-20, 12/24, 10-24, 8-32,  6-32.
  • STI-UNF V-TapGuide handles 9 Unified Fine Thread sizes (9 holes): 5/8-18, 9/16-18, 1/2-20, 7/16-20, 3/8-24, 5/6-24, 1/4-28, 10-32, 8-36.

We currently offer two of Big Gator Tools' tap guides:

  • The Standard (Imperial) V-TapGuide
  • The Metric V-TapGuide

All of the tap guides that we offer have a natural steel finish and include a protective plastic case.

For more information on each, please see below.


the metric v-TAPguide 

  • Full product name: MTG500NP
  • Holes: 9
  • Measurements: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm
  • Price: Available via Amazon for £27.99
Metric V-TapGuide

The STANDARD (Imperial) V-TAPGUIDE

  • Full product name: STD500NP
  • Holes: 9
  • Measurements: 0-80, 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-36, 4-40, 4-48, 5-40, 5-44, 6-32, 6-36, 6-40, 8-32, 8-36, 8-40, 10-24, 10-32, ¼-20, ¼-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, ½-13, ½-20, 5/8-11, 5/8-18
  • Price: Available via Amazon for £27.99
Standard Imperial V-TapGuide