Which guide is correct for fitting a 9/16’s drill bit? The 9/16’s on this one is 43/64’s.

Good question! STI-UNC100SNP has the 9/16's marked over the biggest hole. Hope this helps. We have them in stock.

Are there 2 tap guides available one for unc & 1 for unf?

Basically it's a guide for SAE sized bolt or drill bits. The walls inside each hole are smooth. This one is not for metric. I bought this to sit on a surface that I will drill to keep my drill hole straight. It will sit on a flat surface as well sit perfectly on a corner. For example when installing a handle on a cabinet with a hole drilled in at a slant will cause the handle to not position flush to the surface when installed looking like a jank ass been slopping things up in there...

Why are the guide holes so much larger than nominal? nominal=>measurements: 1/2=>.608, 7/16=>.532, 3/8=>.458, 5/16=>.391, 1/4=.318

Can I use a tap guide as a drill guide? No, the tap guide is sized for tap diameters. The drill guide is sized for drill bits. There is a difference and if you attempt to use the tap guide as a drill guide there will be slop and inaccuracy.

Are these thread? can i put threaded npt to check tap?

Good question! Sorry these are not threaded. The holes are a Tap Guide. Hope this helps. We have them in stock.

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STI-UNC V-TapGuide

Product ID: 19581025

Details

Brand
Big Gator
Finish Type
Nickel
Item dimensions L x W x H
4.75 x 1.13 x
Material
Special nickel
Shank Type
Round

🎯Precision perpendicular alignment

📏10 guide holes for UNC taps

🛠️Heat-treated nickel alloy steel

589 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Nail every thread with precision and power!

DURABLE BUILD - Crafted from heat-treated nickel alloy steel to withstand rigorous industrial use.
PORTABLE COMPACT - Lightweight 8 oz design with compact dimensions (4.75 x 1.13 x 0.88 inches) for easy transport and storage.
LIFETIME CONFIDENCE - Backed by a lifetime warranty, ensuring long-term reliability for professional projects.
PRECISION ENGINEERING - Ground base ensures perfect perpendicular alignment on flat, round, or square materials.
UNIVERSAL COMPATIBILITY - Covers 10 standard UNC tap sizes from 6-32 to 9/16-12 for ultimate versatility.

The Big Gator Tools STI-UNC100SNP V-TapGuide® is a precision-engineered, universal screw thread insert guide designed for standard UNC taps. Made from heat-treated nickel alloy steel, it offers durable, perpendicular alignment across 10 common UNC tap sizes, ensuring flawless Heli Coil insert threading on various material shapes. Compact and portable, it’s a must-have for professionals demanding accuracy and reliability, backed by a lifetime warranty.

Specifications

ASIN	B008MPAORO
Best Sellers Rank	#139,440 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Tapping Inserts
Brand Name	Big Gator Tools
Customer Reviews	4.5 4.5 out of 5 stars (139)
Finish Types	Nickel
Global Trade Identification Number	00613103042718
Item Dimensions	4.75 x 1.13 x 0.88 inches
Item Weight	8 ounces
Manufacturer	Big Gator Tools
Material Type	Special nickel alloyed steel that is heat treated for durability
Model	BGRSTIUNC100SNP
Number of Flutes	2
Number of Packs	1
Number of Pieces	1
Part Number	BGRSTIUNC100SNP
Point Style	Guide Point
Set Name	STI-UNC100SNP
Shank Type	Round
Surface Recommendation	Alloy Steel
Tool Flute Type	Straight
UPC	613103042718
Unit Count	1 count
Warranty Description	Lifetime warranty does not cover abuse

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