Shop with Confidence — Free Shipping on All Orders

{"id":9681280434327,"title":"4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40 4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40","handle":"4-piece-100-degree-countersink-bit-set-12-21-30-40-4-piece-100-degree-countersink-bit-set-12-21-30-40","description":"\u003ch3\u003e4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e4 pc set of 100° countersink bits, 1\/2\" diameter. 40, 30, 21, 12. Bits are\n3 flute, Integral (fixed) pilot for cutting accuracy. Made from high speed\nsteel. Have a 1\/4x28 threaded shank. Note: Cannot be used for steel – only\naluminum and soft metals.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003e4 Pc set of 100 degree countersink cutters.\u003c\/li\u003e\n \u003cli\u003eIncludes #40, #30, #21, #12 bit sizes, 1\/2\" diameter\u003c\/li\u003e\n \u003cli\u003eHas standard 1\/4\"-28 thread\u003c\/li\u003e\n \u003cli\u003eBits are 3 fluted and Made from high speed stee\u003c\/li\u003e\n \u003cli\u003eNote: Cannot be used for steel only aluminum and soft metals.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-07-30T17:29:50+10:00","created_at":"2026-07-27T00:25:34+10:00","vendor":"Wicks Aircraft","type":"Countersink Drill Bits","tags":["home_improvement_Aug2026"],"price":25000,"price_min":25000,"price_max":25000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48068635885719,"title":"4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40","option1":"4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40","option2":null,"option3":null,"sku":"B0BSZ63FKL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40 4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40 - 4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40","public_title":"4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40","options":["4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40"],"price":25000,"weight":59,"compare_at_price":null,"inventory_management":"shopify","barcode":"TC-13040-SET","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/newnestshop.com\/cdn\/shop\/files\/B0BSZ63FKL.jpg?v=1785075937","\/\/newnestshop.com\/cdn\/shop\/files\/61fY3B7L2yL.jpg?v=1785075936","\/\/newnestshop.com\/cdn\/shop\/files\/51Z7patCe1L.jpg?v=1785075936"],"featured_image":"\/\/newnestshop.com\/cdn\/shop\/files\/B0BSZ63FKL.jpg?v=1785075937","options":["Style"],"media":[{"alt":null,"id":42460766568599,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1976,"width":1976,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0BSZ63FKL.jpg?v=1785075937"},"aspect_ratio":1.0,"height":1976,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0BSZ63FKL.jpg?v=1785075937","width":1976},{"alt":null,"id":42460766601367,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2560,"width":2560,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/61fY3B7L2yL.jpg?v=1785075936"},"aspect_ratio":1.0,"height":2560,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/61fY3B7L2yL.jpg?v=1785075936","width":2560},{"alt":null,"id":42460766634135,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1055,"width":1055,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/51Z7patCe1L.jpg?v=1785075936"},"aspect_ratio":1.0,"height":1055,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/51Z7patCe1L.jpg?v=1785075936","width":1055}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e4 pc set of 100° countersink bits, 1\/2\" diameter. 40, 30, 21, 12. Bits are\n3 flute, Integral (fixed) pilot for cutting accuracy. Made from high speed\nsteel. Have a 1\/4x28 threaded shank. Note: Cannot be used for steel – only\naluminum and soft metals.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003e4 Pc set of 100 degree countersink cutters.\u003c\/li\u003e\n \u003cli\u003eIncludes #40, #30, #21, #12 bit sizes, 1\/2\" diameter\u003c\/li\u003e\n \u003cli\u003eHas standard 1\/4\"-28 thread\u003c\/li\u003e\n \u003cli\u003eBits are 3 fluted and Made from high speed stee\u003c\/li\u003e\n \u003cli\u003eNote: Cannot be used for steel only aluminum and soft metals.\u003c\/li\u003e\n \u003c\/ul\u003e"}
  1. Home

4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40 4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40

In Stock. Leaves warehouse within 2 - 3 business days

$250.00 AUD
Maximum quantity available reached.
Shop with Confidence — Free Shipping, Always
More detailed product descriptions
Free Shipping Australia Wide
100% Safe & Secure Checkout
100 Days Return Policy *
1 Year Warranty *

4 Piece 100 Degree Countersink Bit Set, #12, #21, #30, #40

4 pc set of 100° countersink bits, 1/2" diameter. 40, 30, 21, 12. Bits are 3 flute, Integral (fixed) pilot for cutting accuracy. Made from high speed steel. Have a 1/4x28 threaded shank. Note: Cannot be used for steel – only aluminum and soft metals.

Product Features

  • 4 Pc set of 100 degree countersink cutters.
  • Includes #40, #30, #21, #12 bit sizes, 1/2" diameter
  • Has standard 1/4"-28 thread
  • Bits are 3 fluted and Made from high speed stee
  • Note: Cannot be used for steel only aluminum and soft metals.

Buy with confidence as this product comes with 18 months full local warranty in Australia & New Zealand (unless otherwise stated in the overview).

This product also comes with the benefits of the CocoonPower Warranty. For further details please read our Warranty Guidelines.

You can also purchase 3 Year Extended Care. If you are interested please see our Extended Care Information.