Can i use this on James Hardie Panels for exterior siding?

Haven't taken mine out of the package yet. I'm improvising cement board for skirting on a manufactured home I'm working on. I looked high and low for a tool that would pre-drill and countersink as I want it to look finished once the #10 gray poly screws are sunk. I can't imagine why it wouldn't work but it is an expensive bit $$$ Good Luck

What size and type of screw did you use to secure the Hardiboard after using this tool?

This product is a bit expensive, but does an excellent job. In my case I used 3/16 inch Tapcons to secure half inch Hardi-board. The countersink was a bit more than 1/16 inch below the surface. I had no problems with any of the Tapcons pulling through the countersink hole. Makes a nice clean insulation that can even be used in place of wallboard for a weeping cinder block wall. Will also work with 1/4 inch hardi-board but wouldn't recommend it unless you use the 1/4 inch sized tapcons.

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Smart-Bit Pre-drilling and Countersinking Tool for Fiber Cement Board such as James Hardie Fibre Cement Board by Smart-Bit by Smart-Bit

Smart-Bit Pre-drilling and Countersinking Tool for Fiber Cement Board such as James Hardie Fibre Cement Board by Smart-Bit by Smart-Bit

Product ID: 542622976

Details

Brand
Smart Surface
Item dimensions L x W x H
22.9 x 10.2 x
Material
Tungsten
Point Style
Taper Point
UPC
099385056283

📏Compact Dimensions

🔩Tungsten Carbide Tip

⚙️Spiral Flute Design

Description

🔧 Drill Smart, Finish Flawlessly!

EASY REPLACEMENT - Comes with 2 replacement drill bits, ensuring you're always ready for your next project.
SURFACE PROTECTION - The innovative stop collar spins freely, preventing any surface marring for a pristine finish.
PRECISION ENGINEERING - Experience flawless drilling with a tungsten carbide tipped design that ensures durability and efficiency.
LIGHTWEIGHT PORTABLE - Weighing only 9.07 g, this tool is easy to carry and store, making it ideal for on-the-go professionals.
VERSATILE COMPATIBILITY - Perfectly designed for fiber cement boards like James Hardie, making it a must-have for your toolkit.

The Smart-Bit Pre-drilling and Countersinking Tool is engineered for precision drilling in fiber cement boards, featuring a tungsten carbide tip and a unique stop collar to protect surfaces. With a lightweight design and included replacement bits, it's the perfect addition for professionals seeking efficiency and quality in their projects.

Specifications

ASIN	B00AE8G2HS
Brand Name	Smart Surface
Customer Reviews	4.1 4.1 out of 5 stars (34)
Item Dimensions	22.9 x 10.2 x 2.5 Centimeters
Item Weight	9 g
Manufacturer	Starborn Industries, Inc.
Material Type	Tungsten Carbide
Model Number	BDA446RV
Number of Pieces	2
Part Number	BDA446RV
Point Style	Taper Point
UPC	099385056283
Unit Count	1.0 Count

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