# 1-1/8” x 18” Quad Head Simpson Strong-Tie SDS-plus Drill Bit

> Simpson Strong-Tie SDS-plus MDPL11218Q, 1-1/8” x 18” Shank Drill Bit. Quad Head4x Carbide Drill Bit, offers contractor-grade quality ideal for commercial construction use – now at Nail Gun Depot.

- **URL:** https://www.nailgundepot.com/simpson-strongtie-mdpl11218q-sds-plus-drill-bits
- **Breadcrumbs:** Home > 1-1/8” x 18” Quad Head Simpson Strong-Tie SDS-plus Drill Bit
- **SKU:** MDPL11218Q
- **Brand:** Simpson Strong-Tie
- **Price:** 91.69 USD
- **Availability:** InStock

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SKU#: MDPL11218Q
BOX COUNT: 1

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![1-1/8” x 18” Quad Head Simpson Strong-Tie MDPL11218Q SDS-plus Drill Bits](https://www.nailgundepot.com/media/catalog/product/s/d/sds_plus_quad_head_-_copy.jpg)

![1-1/8” x 18” Quad Head Simpson Strong-Tie MDPL11218Q SDS-plus Drill Bits shank](https://www.nailgundepot.com/media/catalog/product/s/d/sds_plus_shank_detail_-_copy.jpg)

![1-1/8” x 18” Quad Head Simpson Strong-Tie MDPL11218Q SDS-plus Drill Bits head](https://www.nailgundepot.com/media/catalog/product/q/u/quad_2_a_mdplq-mdmxq-mdspq_featclospho_pho_prod_drillbit-quadhead-detail_c0_1_1.jpeg)

![1-1/8” x 18” Simpson Strong-Tie MDPL11218Q SDS-plus Drill Bits lifestyle](https://www.nailgundepot.com/media/catalog/product/q/u/quad_3_a_mdplq-mdmxq-mdspq_sitpho_pho_inst_drillbit-quadhead-jobsite_c0_1_1.jpeg)

### $91.69

#### COMPATIBLE FASTENERS

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[**SKU#: MDPL01506-R25**](https://www.nailgundepot.com/simpson-strongtie-mdpl01506-r25-sds-plus-drill-bits)

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#### $13.05

## PURCHASED TOGETHER

[**SKU#:MDPL10018Q**](https://www.nailgundepot.com/simpson-strongtie-mdpl10018q-sds-plus-drill-bits)

[1” x 18” Quad Head Simpson Strong-Tie SDS-plus Drill Bit](https://www.nailgundepot.com/simpson-strongtie-mdpl10018q-sds-plus-drill-bits)

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## **$77.92**

[**SKU#:MDPL08718Q**](https://www.nailgundepot.com/simpson-strongtie-mdpl08718q-sds-plus-drill-bits)

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[**SKU#:MDPL12518Q**](https://www.nailgundepot.com/simpson-strongtie-mdpl12518q-sds-plus-drill-bits)

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[**SKU#:MDPL06208Q**](https://www.nailgundepot.com/simpson-strongtie-mdpl06208q-sds-plus-drill-bits)

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## **$23.05**

#### PRODUCT OVERVIEW

Pre-drill and install using the Simpson Strong-Tie SDS-Plus Shank MDPL11218Q Drill Bit 1-1/8” x 18” with Quad Head4x. This high-volume double-helix designed bit offers contractor-grade quality ideal for use in commercial construction. The SDS-plus shank has many enhanced features including its chromium-nickel-molybdenum steel alloy body to improve the ease of use, hammering quality and overall efficiency. Installers appreciate the centering tip for easy spot drilling, along with the uniformly brazed carbide inserts resulting in extended bit life.

This bit comes heat-treated with a shot-peened finish to increase surface hardness, while reducing drill bit wear and improving its bending resistance. It’s manufactured for efficiency with a chisel-shaped head that easily penetrates material while preventing sticking in concrete and removing dust upon use. Energy transfer is maximized with the patented, high-performance, reinforced core flute design. The SDS-plus shank works with the Titen Installation tool to allow pre-drilling and installation of Titen screws using a rotohammer. (Rotohammer must be in rotation-only mode before driving screws.) This compatible bit fits all current and older SDS-plus rotohammers from AEG, Black & Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo, Milwaukee, Porter Cable, Ramset, Red Head, Ryobi and Skil. Conforms to ANSI Standard B212.15. Package includes 1 SDS-Plus Shank Drill Bit.

SPECIFICATIONS

**Box Count**
1

**SKU**
MDPL11218Q

**UPC**
707392486701

**Application Type**
Concrete

**Brand**
Simpson Strong-Tie

**Condition**
New

**Tool Compatibility**
SDS-plus Rotohammers

**Fastener Treatment**
Shot-peened

**Fastener Shank Diameter**
1-1/8"

**Product Color**
Silver

**Fastener Material**
Steel Alloy

**Fastener Head Type**
Quad Head4x Drill Bit

**Rating/Certification Provided**
ANSI Standard B212.15

**Fastener Shank Type**
SDS-plus

**Manufacturer's Warranty**
Limited

**Item Length**
18"

**Model**
SDS-plus Drill Bits

**Product Type**
Carbide Drill Bits

**Special Offer**
No

#### QUESTIONS & ANSWERS

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_Source: [Nail Gun Depot](https://www.nailgundepot.com/)_
_Generated: 2026-10-23T01:47:58.973Z_