--- product_id: 279887263 title: "Square Hole Mortise Chisel Drill Bit Tools, HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set Twist Drill, Different Sizes 1/4\" 5/16\" 3/8\" 1/2\" 9/16\" 5/8\"(6pcs)" brand: "dele" price: "E£ 7201" currency: EGP in_stock: true category: "Dele" url: https://www.desertcart.com.eg/products/279887263-square-hole-mortise-chisel-drill-bit-tools-hss-woodworking-hole store_origin: EG region: Egypt --- # 6 precision sizes 1/4" to 5/8" 200mm core length for deep drilling HSS steel, HRC48-50 hardness Square Hole Mortise Chisel Drill Bit Tools, HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set Twist Drill, Different Sizes 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"(6pcs) **Brand:** dele **Price:** E£ 7201 **Availability:** ✅ In Stock ## Summary > 🔩 Drill Square, Build Sharp: Master Your Mortises Like a Pro! ## Quick Answers - **What is this?** Square Hole Mortise Chisel Drill Bit Tools, HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set Twist Drill, Different Sizes 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"(6pcs) by dele - **How much does it cost?** E£ 7201 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/279887263-square-hole-mortise-chisel-drill-bit-tools-hss-woodworking-hole) ## Best For - dele enthusiasts ## Why This Product - Trusted dele brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Size Range:** Six essential sizes from 1/4" to 5/8" cover all your square hole mortising needs with professional accuracy. - • **Labor-Saving Efficiency:** Drills precise holes with minimal pressure, accelerating your workflow and reducing fatigue on demanding job sites. - • **Long-Lasting Performance:** High concentricity and lengthened core ensure stability and extended tool life, making it a smart investment for pros. - • **Optimized for Square Holes:** Designed specifically for mortise and tenon machines, delivering perfect square holes in one go—no manual chiseling required. - • **Precision-Crafted HSS Steel:** Engineered with high-speed steel and heat treatment for durability and sharpness that lasts through countless projects. ## Overview This 6-piece mortise chisel drill bit set by Dele features high-speed steel construction with HRC48-50 hardness, offering six sizes from 1/4" to 5/8". Designed exclusively for use with mortise and tenon machines, it enables fast, precise square hole drilling in wood, reducing manual labor and boosting construction efficiency. With a 200mm core length and high concentricity, it ensures durability and professional-grade performance for woodworking, installation, and decoration projects. ## Description FEATURES: Various existing bits, can only process a circular hole, square hole can not be processed, to machining square hole, must drill the hole or cutting machine processed crude hole, then chisel made from artificial hand. This utility model in the hole drilled by the rotary body, while the impact of the use of hammer impact force transmitted to the outer body, the material crushing round hole and square head wall, a one-time processing of a square hole, and the dust can be broken slag discharged from the tube. Using different specifications of the square hole drill, matching the appropriate power of the square hole machine, you can play a square hole to meet the requirements. Professional wood drill, suitable for construction, installation, decoration, decoration and other industries. Specifications: Material: HSS ;Hardness: HRC 48~50 Holder diameter: 19mm (circular) ;Drilling core length: 200mm Slotting flute diameter:1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm), 9/16 Inch (14mm), 5/8 Inch(16mm). Package Included: 1 x 5/8-inch (16mm) 1 x 9/16-inch (14mm) 1 x 1/2-Inch(12.7mm) 1 x 3/8-Inch(9.5mm) 1 x 5/16-Inch(8mm) 1 x 1/4-Inch(6.4mm) ## Features - Size: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm),1/2 Inch (12.7mm), 5/8 Inch (16mm), 9/16 Inch (14mm) - Material: Made of high-speed steel,Heat treatment, HRC48~50, high hardness,lengthened core,high concentricity. - Application: Our woodworking morstising chisel bits suitable for drilling square holes in wood with a tongue-and-groove machine or tongue-and-groove attachment, and has a long service life, please rest assured to use. - Drills precise holes with little pressure,reduce the labor intensity of construction workers, accelerate the construction speed, reduce the construction cost of construction, installation, decoration, decoration industry. - Notice: square hole drill needs to cooperate with square hole drill machine (mortise and tenon) use and can not use with electric drill, bench drill. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08RCGMD31 | | Best Sellers Rank | #166,272 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #196 in Wood Drill Bit Sets | | Brand Name | Dele | | Customer Reviews | 4.2 4.2 out of 5 stars (225) | | Cutting Angle String | 9E+1 degrees | | Cutting Diameter | 0.25 inches | | Finish Types | Finished | | Manufacturer | Dele | | Material Type | High Speed Steel (HSS) | | Minimum Bore Diameter | 0.25 inches | | Model | ttand-021 | | Number of Flutes | 2 | | Number of Packs | 1 | | Number of Pieces | 6 | | Part Number | ttand-021 | | Point Style | Square Point | | Set Name | Dele 6-Piece Set | | Shank Type | Square | | Surface Recommendation | Wood | | Tool Flute Type | Straight | | Unit Count | 1 Count | ## Product Details - **Cutting Angle String:** 9E+1 degrees - **Cutting Diameter:** 0.25 inches - **Finish Type:** Finished - **Material:** High Speed Steel (HSS) - **Shank Type:** Square ## Images ![Square Hole Mortise Chisel Drill Bit Tools, HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set Twist Drill, Different Sizes 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"(6pcs) - Image 1](https://m.media-amazon.com/images/I/61cBNCY238L.jpg) ## Questions & Answers **Q: Can these be used on a heavy duty Drill Press?** A: I believe you have to have a mortise machine to use a mortise chisel. ## Frequently Bought Together - Square Hole Mortise Chisel Drill Bit Tools, HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set Twist Drill, Different Sizes 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"(6pcs) - Milescraft 1318 DrillMate Portable Drillling Guide – Precision Drilling Jig Attachment for Drilling Angled or Straight Holes, Adjustable Drill Guide Attachment, Portable Drill Press with 3/8” Chuck - Square Hole Drill Bit Adapter for Drill Machine Accessory, Easy Installation and Disassembly, Mortising Attachment for Drill Press, Woodworking Mortise Machine, Tenon Drill Bits Fixing Bracket. --- ## 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.com.eg/products/279887263-square-hole-mortise-chisel-drill-bit-tools-hss-woodworking-hole](https://www.desertcart.com.eg/products/279887263-square-hole-mortise-chisel-drill-bit-tools-hss-woodworking-hole) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-10-02*