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Big Girl - 3/8" x 1.25" Downcut Rougher - 3/8 Shank

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Original price $90.00
Original price $90.00 - Original price $90.00
Original price $90.00
Current price $59.99
$59.99 - $59.99
Current price $59.99

Part of the “Gold Digger Family”, the BIG GIRL is the ultimate Downcut CNC bit for speed, designed to cut fast, cut deep, and stay sharp. The Downcut design of this roughing bit is perfect for pocketing out material and leaving a clean top edge! The ZrN gold coating increases the bit’s hardness and heat resistance, extending its lifespan and ensuring it powers through tough materials with ease. Perfect for roughing and pocketing, leaving a clean edge for minimal cleanup! The Golden Big Girl saves time, money, and protects your finishing bits, making it a must-have if you already have the Golden Big Boy.

Recommended Feeds & Speeds 

  • Hobby CNC with Router - Do Not Use with a Router!
  • Hobby CNC with Spindle - 150 IPM
  • Industrial CNC - 300 IPM
  • Cut Depth Per Pass - .375" 
  • RPM's - 18,000
  • Plunge Rate = 50% of Feedrate (ex: Feedrate=100 IPM, Plunge Rate=50 IPM)
  • These Feedrates are recommended starting points, each CNC is different and feedrates will vary.

Bit Info

  • Diameter: 3/8''
  • Rotation: Downcut
  • Cutting Height: 1.25''
  • Shank Size: 3/8''
  • Flutes: 3
  • Overall Length: 2 1/2"
  • Material: Solid Carbide
    • Part #: GDBIGGIRL

    Customer Reviews

    Overall rating: 4.9 / 5 from 4481 reviews.

    Customer photo review of Custom Inlay Builder (18"x12")

    This is the second custom cutting I have made using your base and inlay kit. I also use your clamping vice.

    Custom Inlay Builder (18"x12")

    Customer photo review of Big Girl - 3/8" x 1.25" Downcut Rougher - 3/8 Shank

    This rougher bit can EAT! The roughing bit made quick work of clearing the pocket of this charcuterie board. The bit flew through the cherry and let a smooth bottom surface that required very little sanding.

    Big Girl - 3/8" x 1.25" Downcut Rougher - 3/8 Shank

    Customer photo review of Custom Inlay Builder (18"x12")

    All the inlay parts arrived great except the Osage. The glue separated from itself, which can be expected due to the oil nature of Osage. No issues, just wanted you to know. Thanks for your knowledge, videos, and your company for supporting amateurs like me!

    Custom Inlay Builder (18"x12")

    Customer photo review of Game Day Board CNC Kit

    I supervise the CNC shop in a local makerspace in Lowell, MA. l love making your products as examples to members of what they can do on the machines. This one will be given to a local charity for annual fundraiser. I've sent many a member to you for training and bits. Expect some requests for TBN-32s, I've been teaching 3d carves this week. (Oh, and everyone mentions the handwritten thank-you cards! I collect them now)

    Game Day Board CNC Kit

    Customer photo review of Custom Inlay Builder (18"x12")

    Love this kit. It takes so much work off my plate. In a tiny shop it is so worth every penny!!

    Custom Inlay Builder (18"x12")

    Customer photo review of Wavy USA Flag CNC Kit

    Love these kits. They make it so easy to get a great looking flag. 2 large and one small flag done. 2 small flags have roughing pass, stars carved and epoxied. Will carve towards the end of the week. People love these flags!

    Wavy USA Flag CNC Kit

    Customer photo review of Hard Maple Panel

    This was my first project on my new Shapeoko 5.1 pro, love it!

    Hard Maple Panel

    Customer photo review of Wavy USA Flag CNC Kit

    Absolutely love both the large flag and the small flag. Awesome job! I actually love all of your kits, bits and materials!

    Wavy USA Flag CNC Kit

    Customer photo review of BamX - Bourbon

    A client wanted his and his wife’s name carved in a heart. I took it one step further (as always), I carved it in a tree for them. BamX is such a versatile material and the possibilities are endless.

    BamX - Bourbon

    Customer photo review of Osage Orange Inlay Plug  (18"x12")

    First time I've had a chance to work with Osage Orange and it's great! Easy to cut and very little packing or chip-out. Nice wood - I'll definitely get more!

    Osage Orange Inlay Plug (18"x12")

    Customer photo review of V-Carve Inlay Bit Set

    Impressive bits and the fact is I have ordered more bits since using them in the inlay project

    V-Carve Inlay Bit Set

    Customer photo review of 1/64 Radius - 6.2 Deg 3D Tapered Ballnose - 1/4" Shank - TBN1-64

    The bit works great and I have been using it to produce some of Nik's work from Broinwood. I have recently received an order to produce two BBQ cutting boards for Christmas gifts for my client's sons. One son is in the Marine Corp and the other son is in the Navy. My Client (The father) was so excited to see the BBQ cutting board I have in my home and there was no hesitation to put in the order. Thank you!

    1/64 Radius - 6.2 Deg 3D Tapered Ballnose - 1/4" Shank - TBN1-64

    Customer photo review of Complete CNC Inlay Starter Kit (12"x9")

    First let me start by saying how amazing the boards were in the kit. This was by far the most impressive design I’ve ever cut on my cnc and will definitely be making more inlays in the near future! Thanks to everyone at CIC for such a great experience.

    Complete CNC Inlay Starter Kit (12"x9")

    Customer photo review of Complete CNC Inlay Starter Kit (12"x9")

    I just got my Altmill a couple of weeks ago and am so impressed with the items I bought from you. The inserted surfacing bit did awesome on the wasteboard and the inlay cutters worked great too. I made a couple of test inlays before trying the cutting board. All three of them came out flawless! The inlay press worked well also. I did put a few clamps on the sides to be sure it was all seated. The handwritten notes were a nice touch in my orders!!! Ordering things online is so impersonal and this made it so much better. Thanks!!!

    Complete CNC Inlay Starter Kit (12"x9")

    Customer photo review of Interactive Maze Game CNC Kit

    I bought one and my wife loved it so much that she took it. Bought 3 more to make for Christmas gifts. They all turned out great! I'm very pleased and will order more in the future.

    Interactive Maze Game CNC Kit

    Customer photo review of Hard Maple Panel

    Making inlay plaques Walnut on Maple. Great products

    Hard Maple Panel

    Customer photo review of BroinwooD Essential Inlay Set

    Used all the bits to create this whiskey barrel table. I was able to achieve some very fine details . I'm very happy withe the bits!

    BroinwooD Essential Inlay Set

    Customer photo review of Custom Inlay Builder (18"x12")

    All your products are great quality and a huge time saver when needing these large cutting boards. This one is for a charity auction where my Wife volunteers. It will be interesting how much it brings them.

    Custom Inlay Builder (18"x12")

    Customer photo review of Wavy USA Flag CNC Kit

    The flag kit worked flawlessly - it takes a long time for the final carve, but well worth it. I added the 250 year anniversary V carve to it as well. I took a different approach than Ryan and carved it first and then used a shellac in and around the v-carve and let it dry thoroughly. I then used acrylic paint and it dry thoroughly. I attached a 1/2 foam pad extension to my Festool sander and carefully sanded off the excess paint (take light passes so not to sand the carve detail away). I then top coated the whole flag using a satin acrylic spray.

    Wavy USA Flag CNC Kit

    Customer photo review of Custom Inlay Builder (18"x12")

    This cutting board inlay was made using the TBN method. Although not shown, I added the brass cutting board feet from CIC to it as well.

    Custom Inlay Builder (18"x12")

    Customer photo review of Game Day Board CNC Kit

    The quality of CIC products speaks for itself. They always have superior wood and cutting bits.. and their customer service can't be beat. Great Job CIC

    Game Day Board CNC Kit

    Customer photo review of Wavy USA Flag CNC Kit

    Made both large and small. Still working to finish small one. Two friends asked me to make the small ones for Veterans Day. I have Shapoko Pro5 with 80kw water cooled spindle. Wish I could get a Carbide Create file that would allow me to make some settings changes to speed things up and make a quick finishing pass on the stars to get rid of the fuzzies. Great kit! 2 down 2 to go with some more for gifts and a Rotary Fundraiser in January.

    Wavy USA Flag CNC Kit