--- product_id: 564814406 title: "Flex Shank Installer Drill Bit Guide Tools/Cable Bit Bumper Balls for 3/16\" Shank/in-Wall Drill Guide Kit 1-3/4\" & 2-5/16\" - S/4+Tool" brand: "qzattcaen" price: "฿2875" currency: THB in_stock: true reviews_count: 5 category: "Qzattcaen" url: https://www.desertcart.co.th/products/564814406-flex-shank-installer-drill-bit-guide-tools-cable-bit-bumper store_origin: TH region: Thailand --- # Precision guide for flex shank bits Stainless steel adjustable stopper Includes 2 PVC bumper ball sizes Flex Shank Installer Drill Bit Guide Tools/Cable Bit Bumper Balls for 3/16" Shank/in-Wall Drill Guide Kit 1-3/4" & 2-5/16" - S/4+Tool **Brand:** qzattcaen **Price:** ฿2875 **Availability:** ✅ In Stock ## Summary > 🎯 Drill with confidence, guide with precision—never miss a beat! ## Quick Answers - **What is this?** Flex Shank Installer Drill Bit Guide Tools/Cable Bit Bumper Balls for 3/16" Shank/in-Wall Drill Guide Kit 1-3/4" & 2-5/16" - S/4+Tool by qzattcaen - **How much does it cost?** ฿2875 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/564814406-flex-shank-installer-drill-bit-guide-tools-cable-bit-bumper) ## Best For - qzattcaen enthusiasts ## Why This Product - Trusted qzattcaen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable PVC balls paired with a corrosion-resistant stainless steel stopper for long-term reliability. - • **Compact & Ready:** Complete kit with L-shape wrench for quick stopper adjustments—no extra tools needed. - • **Maximize Efficiency:** Designed to boost your in-wall drilling precision and speed, making you the go-to pro on site. - • **Stay Laser-Straight:** Ensures your flex shank drill bit never veers off course, even in tight, hidden wall spaces. - • **Dual-Size Versatility:** Switch effortlessly between 1-3/4" and 2-5/16" PVC bumper balls to match your project needs. ## Overview The Flex Shank Installer Drill Bit Guide Kit is a professional-grade tool accessory designed to keep 3/16" flex shank drill bits perfectly aligned during in-wall drilling. Featuring two durable PVC bumper balls (1-3/4" and 2-5/16" diameters) and a stainless steel adjustable stopper, this compact kit ensures precision in narrow, hard-to-reach spaces. Ideal for millennial pros seeking efficiency and flawless results in every project. ## Description Product Description Package includes: 1pc Small PVC bumper ball in 1-3/4" diameter 1pc Large PVC bumper ball in 2-5/16" diameter 1pc Stopper Width x Thickness: 3/8" x 1/8" 1pc L-Shape Wrench Length: 3-1/8" x 3/4" Features： ◆This Flex Shank Installer Drill Bit Guide Tool kits is designed for guide the flex shank drill bit to keep straight during working. ◆This In-Wall Drill Guide Kit is suitable for using in narrow and long space, some out of sight places within the wall. Insert the flex shank bits into the PVC bumper ball, fasten the stopper to keep ball in the top position, then it can works. ◆This drill bit Guide kits include: 1pc 1-3/4" diameter PVC ball, 1pc 2-5/16" diameter PVC ball, 1pc 3/8" stopper, 1pc L-shape wrench to adjust stopper. Two different size balls can be used in different working condition base on your needs. ◆The two bumper balls are made of PVC, and the stopper is made of stainless steel. ◆If you have a Flex Shank Installer Drill Bit, please don’t hesitate to buy this guide tool kit, it will much helpful for you to rise your work efficient! It will bring BIG SURPRISE to you, trust me :) Review: Used to drill through floor plates and joists. The only thing it needs is a bigger wire routing hole. When using speaker wire, even 12 gauge doesn't really fit. Kinda dumb but overall, you can make it work still. Bit was extremely sharp and worked great. Review: work grest, keeps the long bit centered. ## Features - 【Special Design】This Flex Shank Installer Drill Bit Guide Tool kits is designed for guide the flex shank drill bit to keep straight during working. - 【Application】This In-Wall Drill Guide Kit is suitable for using in narrow and long space, some out of sight places within the wall. Insert the flex shank bits into the PVC bumper ball, fasten the stopper to keep ball in the top position, then it can works. - 【Value Package】This drill bit Guide kits include: 1pc 1-3/4" diameter PVC ball, 1pc 2-5/16" diameter PVC ball, 1pc 3/8" stopper, 1pc L-shape wrench to adjust stopper. Two different size balls can be used in different working condition base on your needs. - 【Materials】The two bumper balls are made of PVC, and the stopper is made of stainless steel. - 【Dimension】L Ball Dia: 2-5/16"; S Ball Dia: 1-3/4"; Stopper Width x Thickness: 3/8" x 1/8"; L-Shape Wrench Length: 3-1/8" x 3/4".Note: For 3/16" size drill bits only. If the size you choose is not suitable, it may not fit smoothly or may not stabilise the drill bit. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BM46T8DT | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 276,892 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,640 in Drill Bit Sets | | Customer Reviews | 4.2 4.2 out of 5 stars (385) | | Date First Available | 17 Jan. 2023 | | Finish | Stainless steel | | Item Package Quantity | 1 | | Item Weight | 100 g | | Item model number | HT-40 | | Manufacturer | QZATTCAEN | | Material | Stainless Steel | | Number of Pieces | 4 | | Package Dimensions | 12.9 x 7.9 x 5.79 cm; 100 g | | Part number | HT-40 | | Size | 5.5mm | | Style | 5.5mm PVC Bumper Balls | ## Product Details - **Brand:** QZATTCAEN - **Cutting diameter:** 2.31 Inches - **Finish type:** Stainless steel - **Material:** Stainless Steel - **Shank type:** Cylindrical shaft with flattens ## Images ![Flex Shank Installer Drill Bit Guide Tools/Cable Bit Bumper Balls for 3/16" Shank/in-Wall Drill Guide Kit 1-3/4" & 2-5/16" - S/4+Tool - Image 1](https://m.media-amazon.com/images/I/51eFtmpkaBL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***N on 20 September 2025* Used to drill through floor plates and joists. The only thing it needs is a bigger wire routing hole. When using speaker wire, even 12 gauge doesn't really fit. Kinda dumb but overall, you can make it work still. Bit was extremely sharp and worked great. ### ⭐⭐⭐⭐⭐ Review *by C***R on 20 December 2025* work grest, keeps the long bit centered. ### ⭐⭐⭐⭐ Review *by C***R on 27 October 2025* Worked ok for the job I purchased for. One caution - these are for 3/16" shank drill/extensions. My drill & extensions are 1/4" so I had to drill the balls out. I would also question whether they will hold up with aggressive or heavy use. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/564814406-flex-shank-installer-drill-bit-guide-tools-cable-bit-bumper](https://www.desertcart.co.th/products/564814406-flex-shank-installer-drill-bit-guide-tools-cable-bit-bumper) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-05-04*