--- product_id: 80100102 title: "JIM-GEM® 12\" Increment Borers | 3 Thread 0.200\" (5.15mm) | to Extract Wood Cores | PTFE-coated | Stainless Steel | Secure Grip" brand: "jim gem" price: "£363.04" currency: GBP in_stock: true reviews_count: 1 category: "Jim Gem" url: https://www.desertcart.co.uk/products/80100102-jim-gem-12-increment-borers-3-thread-0-200-5 store_origin: GB region: United Kingdom --- # 3-thread 0.200" (5.15mm) precision bit 12-inch core extraction length PTFE-coated steel for friction & rust resistance JIM-GEM® 12" Increment Borers | 3 Thread 0.200" (5.15mm) | to Extract Wood Cores | PTFE-coated | Stainless Steel | Secure Grip **Brand:** jim gem **Price:** £363.04 **Availability:** ✅ In Stock ## Summary > 🛠️ Drill into precision, grip the future of timber testing! ## Quick Answers - **What is this?** JIM-GEM® 12" Increment Borers | 3 Thread 0.200" (5.15mm) | to Extract Wood Cores | PTFE-coated | Stainless Steel | Secure Grip by jim gem - **How much does it cost?** £363.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/80100102-jim-gem-12-increment-borers-3-thread-0-200-5) ## Best For - jim gem enthusiasts ## Why This Product - Trusted jim gem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Back-Threaded Design:** Effortlessly back out wood cores without damage or hassle. - • **Durable PTFE Coating:** Reduces friction and resists rust and resin buildup for long-lasting performance. - • **Precision Core Extraction:** Easily extract wood cores up to 12 inches deep for accurate timber analysis. - • **Complete Core Sampling Kit:** Includes borer bit, handle, and stainless steel extractor for seamless operation. - • **Ergonomic Color-Coated Handle:** Enhanced grip and high visibility to keep you efficient and safe on the job. ## Overview The JIM-GEM® 12" Increment Borers feature a 3-thread 0.200" (5.15mm) PTFE-coated steel bit designed for efficient wood core extraction. Its color-coated handle ensures secure grip and visibility, while the stainless steel extractor completes the kit for professional-grade timber analysis. Ideal for assessing wood quality, growth, and chemical penetration with durability and ease. ## Description Extract wood cores from trees, freshly treated poles, lumber, or timber to easily determine quality, growth rate, age, tree soundness, and chemical penetration. The steel borer bit is PTFE-coated for reduced friction as well as protection against rust and resin. Back threading allows for easy backing out of wood. The reinforced borer handle is color-coated for added visibility, protection, and a secure grip. The core extractor is constructed of stainless steel. Includes borer bit, handle, and extractor. Review: Working as expected - Used it four times now, it's doing the job. Doesn't seem to have any weak points yet. ## Features - Extract Wood Cores - The Steel Borer Bit is PTFE-Coated - Color-Coated Handle For Added Visibility - Includes Borer Bit, Handle, and Extractor - 12Inch Bit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007BDQHMY | | Best Sellers Rank | #407,808 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #61 in Soldering Insertion-Extraction Tools | | Brand | Jim Gem | | Customer Reviews | 5.0 5.0 out of 5 stars (3) | | Cutting Angle String | 6E+1 Degrees | | Cutting Diameter | 5.15 Millimeters | | Date First Available | February 20, 2012 | | Finish | PTFE | | Finish Type | PTFE | | Item Weight | 1 pounds | | Manufacturer | Jim Gem | | Material | Alloy Steel, Stainless Steel | | Number of Flutes | 1 | | Part Number | 63083 | | Shank Type | Straight | | Size | 12 Inch | | Surface Recommendation | Wood | | Tool Flute Type | Straight | | Unit Count | 1 Count | ## Product Details - **Cutting Angle String:** 6E+1 Degrees - **Cutting Diameter:** 5.15 Millimeters - **Finish Type:** PTFE - **Material:** Alloy Steel, Stainless Steel - **Shank Type:** Straight ## Images ![JIM-GEM® 12" Increment Borers | 3 Thread 0.200" (5.15mm) | to Extract Wood Cores | PTFE-coated | Stainless Steel | Secure Grip - Image 1](https://m.media-amazon.com/images/I/51RVjrTbWWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Working as expected *by S***H on December 29, 2020* Used it four times now, it's doing the job. Doesn't seem to have any weak points yet. ## Frequently Bought Together - JIM-GEM® 12" Increment Borers | 3 Thread 0.200" (5.15mm) | to Extract Wood Cores | PTFE-coated | Stainless Steel | Secure Grip - Jim Gem Container Dibble Bar, Long Dibble Point - JIM-GEM KBC Planting Bar | Heavy-Duty Alloy Steel Tree Planting Tool for Rocky, Difficult Soil | 39" Long | Blade 4 x 12 Inches | Durable | Reinforced Foot Step --- ## 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.uk/products/80100102-jim-gem-12-increment-borers-3-thread-0-200-5](https://www.desertcart.co.uk/products/80100102-jim-gem-12-increment-borers-3-thread-0-200-5) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*