# Bosch 85218M 3/8-In. x 1/2-In. Carbide-Tipped Rabbeting Bit

The Bosch 85218M is a carbide-tipped rabbeting bit listed in a 3/8-inch by 1/2-inch size. Bosch describes this bit type as making rabbets without a router guide, while the listing also identifies a 1/4-inch shank in its included-components text.

- [Original product page](https://best-deals.pro/product/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- [View offer](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Bosch
- Model: 85218M
- Price: 22.69 USD
- Previous price: 28.66 USD
- Discount: 21%
- Price checked: 2026-11-14T07:08:55.631Z
- Rating: 4.8 / 5
- Reviews: 13

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Described as a control-cut micrograin carbide rabbeting bit for making rabbets without a router guide.
- The listing specifies a 0.5-inch cutting length and two flutes.
- Bosch describes its router-bit range as using a shear-angle cutting edge for work in plywood and other materials.

## Pros

- The rabbeting design is described for cutting without a router guide, which can simplify setup for the intended cut.
- A stated two-flute count and cutting length help buyers compare it with bits suited to their router and project.

## Specifications

### Identity
- Brand: Bosch
- Model: 85218M
### Size and cutting
- Listed size: 3/8 In. x 1/2 In.
- Cutting length: 0.5 inches
- Item diameter: 0.38 inches
- Cut type: Carbide-Tipped Cut
- Number of flutes: 2
### Materials and dimensions
- Material listed: Blend
- Weight listed: 2.7 ounces

## Before you buy

- The title and size field give 3/8 In. x 1/2 In., while the included-components text describes a 3/8-inch bit with a 1/4-inch shank. The listed 0.38-inch item diameter and 0.5-inch cutting length do not clarify which dimension the title's 1/2 inch denotes, so confirm the required cut and shank fit before purchase. The material field says Blend although the title says carbide-tipped. These listing details are inconsistent, not proof of a product defect.

## In the box

- Rabbeting bit, 3/8-inch (Included)
- 1/4-inch shank with ball bearing (Included): The package text abbreviates this as “W/B.B.”
- Carbide-tipped cutting component (Included): The package text abbreviates this as “C.T.\(SUPER\).”

## A good fit for

- Woodworkers making rabbets who want a bit described for use without a router guide.
- Buyers whose router accepts the listed 1/4-inch shank, after confirming the intended diameter and cut dimensions.

## Less suited to

- Buyers who need confirmed dimensions for a particular rabbet or router setup without first resolving the listing's dimension ambiguity.

## Customer feedback

The supplied aggregate ratings lean positive, with ratings limited to the four- and five-star categories. They indicate generally favorable impressions but do not explain what customers valued or establish how the bit performs. Buyers should use the stated cutting details and resolve the dimension ambiguity against their project needs.

## Frequently asked questions

### What kind of cut is the Bosch 85218M intended for?
It is identified as a rabbeting bit. Bosch describes carbide-tipped rabbeting bits as making rabbets without a router guide.
### What shank size is listed?
The included-components text specifies a 1/4-inch shank. Confirm this against the selected listing and your router before buying.
### Are the dimensions fully clear?
No. The title gives 3/8 In. x 1/2 In., while other listing details specify a 0.38-inch diameter, 0.5-inch cutting length, and 1/4-inch shank. Confirm the exact dimensions you need.

## Alternative options

- [HUHAO 90 Degree V Groove Router Bit 1/2" Shank, 1-1/2" Dia V Grooving Bits \| Professional Grade Carbide-Tipped CNC Engraving V Groove for Woodworking, signmaking](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- [BOSCH 85601MC 1/2 In. x 1-1/2 In. Carbide-Tipped Double-Flute Template Trim Router Bit](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- [BOSCH 84602MC 23/32 In. x 3/4 In. Carbide-Tipped Plywood Mortising Router Bit](https://best-deals.pro/visit/bosch-84602mc-plywood-mortising-router-bit)
- [BOSCH 85268MC 3/8 In. x 1 In. Carbide-Tipped Double-Flute Flush Trim Router Bit](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- [BOSCH 85615MC 1/2 In. Rabbeting Router Bit](https://best-deals.pro/visit/bosch-85615mc-rabbeting-router-bit)
- [HUHAO 1/2" Shank Dovetail Router Bits, 3/4" Dia Tungsten Carbide Router Bit \| Dovetail Joint Router Bits for Making Boxes Drawers Chests Casework, Great for Craftsman Woodworking](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
- [BOSCH RBS006SBS 6-Piece \(Universally Compatible Accessory\) Carbide-Tipped Groove Cutter Router Bit Assorted Set](https://best-deals.pro/visit/bosch-rbs006sbs-6-piece-carbide-tipped-router-bit-set)
- [3/8 inch Shank CNC Router Bits Spiral End Mill for Grooving Slots Mortises \| 2 Flut...](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
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- [90 Degree V Groove Router Bit 6mm Shank 7.96mm Dia Blue \| 2Pcs 44.5mm Long Carbide ...](https://best-deals.pro/visit/bosch-85218m-carbide-tipped-rabbeting-router-bit)
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## Images

![Bosch 85218M 3/8-In. x 1/2-In. Carbide-Tipped Rabbeting Bit — 1](https://best-deals.pro/i/LkezO_fyo7Vo1xMChfmnX-OjnIEej7NTz9oZjvxxUyc1wClp_Z-K9KyEI6GREVrmhwTO4y8Sm5qCAsifIb3y_8RkWghRTxJptY7a88hKB32a7rOdAbnnRDZg.jpg)