SD301 Threading Inserts are precision-engineered cutting tools designed for thread turning, grooving, and profiling in a variety of materials. These inserts are typically made from PCD, carbide, or cermet, depending on the variant, and are designed to deliver high-accuracy threads, superior surface finish, and long tool life. The SD301 series is ideal for automotive, aerospace, and industrial components, especially where consistent thread geometry and production efficiency are critical.

Product Details • Product Name: PCD Standard Insert – SN Type • Geometry / Shape: Square (90° included angle, ISO SN style) • Clearance (Relief) Angle: 0° (negative rake) • Cutting Edge: Polycrystalline Diamond (PCD) tipped • Common Sizes: SN..0903, SN..1204, SN..1606 (custom sizes available) • Edge Prep: Sharp or honed depending on application • Holder Compatibility: Fits standard ISO SN-type turning tool holders • Typical PCD Grades: 1300/1500 series or equivalent Description The PCD Standard Insert SN Type is a square 90° negative-rake insert designed for heavy-duty roughing, facing, and precision finishing of non-ferrous and abrasive materials. Its 0° clearance angle gives maximum edge strength for rigid setups and interrupted cuts. The PCD-tipped cutting edge provides exceptional wear resistance and thermal conductivity, making it a top choice for automotive, aerospace, electronic, and composite machining where long tool life and superior surface finish are essential.

Vajra Tools is an Indian manufacturer/exporter of cutting / broaching tools. Some key details: • They are listed as established in 1987 and headquartered at Vasai, Maharashtra (Unit No. 2, Godavari, Tungareshwar Industrial Estate, Sativali, Vasai, Maharashtra 401208). • Their product range (on their website) emphasises broaching tools: key-way broaches, internal gear broaches, internal splines, V-notch broaches, square broaches, surface/rack broaches, custom broaches. • They position themselves as a “one-stop solution for all your broaching tools needs” and highlight “design support” plus “manufacture at state-of-the-art facilities”. • I found mention of “turning & grooving / forming turning tool / turning tool (blade, shank)” in a separate product line under “VAJRA® Natural Single Crystal Tool – Turning & Grooving” from another source (JD Diamond Tool) which appears to use the brand “VAJRA®” (capitalised) for PCD/PCBN tools for turning/grooving. Thus, if by “Vajra® Turning tools” you mean tools under the “VAJRA®” turning & grooving product line (likely carbide/PCD/PCBN inserts & toolholders), the description will lean into that side. If you mean the broaching tool line, then the description shifts accordingly. I’ll try to cover both angles. Summary Description The “VAJRA®” turning tool line (blade, shank, forming turning tool) appears to be a premium series of precision turning/grooving tools made with high-end materials (natural single crystal diamond / PCD) for