Search  for anything...

SpeTool 1/4 Inch Shank Downcut Spiral Router Bit 1/4 Inch Cutting Diameter 1 inch Cutting Length with Extra Long Life Coating CNC Router Bits End Mill for Woodwork Mortise Slot

  • Based on 386 reviews
Condition: New
Checking for product changes
$14.59 Why this price?
Save $21.99 was $36.58

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 16
Order within 5 hours and 34 minutes
Available payment plans shown during checkout

Size: 1/4" Dia - 1" CL -1/4" Shank


Style: DOWN CUT


Features

  • SPECIFICATION. Downcut spiral router bit 1" cutting length; 1/4" cutting diameter; 1/4" shank; 2-1/2" overall length, can be used on routers with 1/4" collect.
  • COATING. The new coating provide up to 2.5 times life than the uncoated, make the bit sturdy durable, sharp efficient, smooth stable.
  • DOWN CUT. CNC Spiral bits used for smoothly downcut groove and slots, Mortises, Cycles and dados leave with clean edge and top surface, better than straight bits
  • COMPATIBILITY. This CNC End Mill Router Bits is perfect for soft woods, hard woods, Plywood, laminate, OAK, MDF and any hardwood working. It can be used with cnc router and handheld router with 1/4" collet.
  • DURABLE AND PRECISE. This down-cut spiral router bits are high-quality construction ensures durability and precision, allowing for consistent and accurate cuts.

Size: 1/4" Dia - 1" CL -1/4" Shank


Material: Tungsten Carbide


Brand: SpeTool


Cutting Length: 1 Inches


Item Weight: 1.12 ounces


Product Dimensions ‏ : ‎ 3.46 x 0.55 x 6.14 inches; 1.12 ounces


Item model number ‏ : ‎ SP-D1/4-1/4-D-STaC


Date First Available ‏ : ‎ February 18, 2019


Manufacturer ‏ : ‎ SpeTool


Country of Origin ‏ : ‎ China


Best Sellers Rank: #3,625 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1 in Spiral Router Bits


#1 in Spiral Router Bits:


Customer Reviews: 4.5 4.5 out of 5 stars 386 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice smooth bottom cut.
Size: 1/8" Dia - 1" CL -1/4" Shank Style: UP CUT
I wish I would have had a better understanding of the difference between down cut bits and up cut bits. Up til now I have used down cut bits for everything. The bottom of all my previous cuts always looked unfinished. No more thanks to up cut bits! Nice and sharp. I’ve always had good results with bits from this company! ... show more
Reviewed in the United States on October 16, 2024 by Amazon Customer

  • A+
Size: 1/4" Dia - 1" CL -1/4" Shank Style: DOWN CUT
Wonderful product....well made and packaged with fast delivery. Will purchase more from this company.
Reviewed in the United States on December 28, 2024 by kswood

  • Works great!
Size: 1/2" Dia - 2" CL -1/2" Shank Style: DOWN CUT
Nice clean cuts and aggressive. Thumbs up on this product. Great for CNC.
Reviewed in the United States on December 9, 2024 by phatphlyer

  • Great bit
Size: 1/8" Dia - 1" CL -1/4" Shank Style: DOWN CUT
First individual bit I’ve bought and it works great. Used it on some hard wood to carve out letters and it was clean and never really got hot
Reviewed in the United States on December 27, 2024 by Damian Hall

  • Reliable cuts, Great Durability. Coating dramatically reduces friction.
Size: 1/4" Dia - 1-1/4" CL -1/4" Shank Style: UP CUT
For background, I run a full sheet CNC, cutting primarily 3/4" maple plywood, MDF and HDF. I had been using high priced A***a end mills for my work and they are great, but very expensive and I found that MDF was hard on the coating which often led to shortened lifespans. When I started looking for more cost effective alternatives I tested a series of bits from SpeTool and I was immediately surprised at the cut quality and durability. Even thin 1/16" bits went the distance if I was mindful of going low and slow on my DOC and speeds. I've moved completely to SpeTools for my straight cut bits, and this was my first purchase of their coated bits. It's a big improvement in durability and friction reduction. These are my new go to bits! What I liked: 1. SpeTool end mills are a great value, particularly the 5 packs. 2. Coating markedly reduces friction and chatter. 3. Longer shank adds cutting depth when needed and puts more of the shank in contact with my water cooled spindle which further cools the bit. 4. Available in all sizes with a 1/4" shank. I don't have to change collets. 5. All sizes are available in multiple cut types. I typically use uncut and compression cut bits in 1/4" and 1/8". What I wish: Please offer these bits in 5 packs! ... show more
Reviewed in the United States on May 24, 2024 by Don W.

  • For the thinness of the blade, it lasted a long time.
Size: 1/16" Dia -1/2" CL - 1/4" Shank Style: DOWN CUT
I didn’t need to make a deep groove, so it lasted a long time. Hard to find 1/16” and I was delighted to find this. My wood could chip easily, so I needed to sand the grooves, but I think that was more a function of my material than the bit.
Reviewed in the United States on October 11, 2024 by B. Murray

  • Perfect for cribbage boards
Size: 1/8" Dia - 1" CL -1/4" Shank Style: UP CUT
I fell into making cabbage boards by chance, when my son-in-law loved the coasters, I laser engraved for him and asked about a cribbage board. We have a CNC machine that has a spindle, and I decided to give that a whirl to make one for him as a special present. Little did I know, the bit type and shape plays a huge role in the quality of the product as well as protecting your machine. I needed something that would work for pulling chips out of the cut, and not overheat and potentially cause a fire when drilling dozens of holes. This is a very nice bit and I could see it used in multiple applications, but the drilling of the holes in the cribbage board was my main purpose. It has definitely met and exceeded my expectations. ... show more
Reviewed in the United States on January 26, 2025 by JENNABLON

  • This thing is a beast
Size: 1/2" Dia - 2" CL -1/2" Shank Style: UP CUT
Absolutely one of my best router bits this nice and smooth finish i already ordered another 3 different sizes and the price is acceptable for what you are getting no doubt 👍🏼
Reviewed in the United States on October 24, 2024 by Unblessed

Can't find a product?

Find it on Amazon first, then paste the link below.