Shopping Cart

Your cart is empty.

Your cart is empty.

4” Slotted Mandrel 1/8” Shank & Body, Split Head Mandrel, Sanding Internal Holes, 1/8” Shank Diameter x 4” Overall Length, Pack of 1

Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

About this item

  • [IN THE BOX]: 1 each Pro-Graad 1/8” Shank Diameter x 5/8” Slot Depth x 0.02" Slot Width x 4” Overall Length Slotted Split Head Mandrel. NOTE: This item has an 1/8" shank diameter for use in 1/8" collet rotary tools.
  • [APPLICATION]: Mandrel is for use with strips of abrasive material, or non-woven surface conditioning material. The material is slipped into and secured in the slot. Ideal for finishing internal holes, sanding or polishing bores. Compatible for use with rotary tools and drills that accept 1/8" shank accessories.
  • [EXTENDED REACH]: With a 4" overall length, ideal for accessing challenging areas, allowing for versatile application in various tasks.
  • [DURABLE CONSTRUCTION]: Crafted from Hardened Carbon Steel, ensuring robustness, strength, and longevity, extending the lifespan of the slotted mandrel.
  • [PRODUCT GUARANTEE]: All Pro-Graad products are made with quality materials, which exceed industrial grade standards. We are driven to deliver high-quality, high-performing products to the end user. This is why we stand behind our 100% Product Guarantee. If you are not satisfied with the product, simply return your purchase within 30 days, and we will replace or refund your order. Pro-Graad is a USA Company with US Based Customer Support.


The Pro-Graad 1/8" Shank x 4” Overall Length Slotted Mandrel offers a versatile solution for sanding, finishing, and polishing tasks, particularly in hard-to-reach internal areas. Each pack includes one mandrel with a 1/8” shank diameter, featuring a 5/8” slot depth and a 0.02" slot width, ensuring compatibility with various abrasive materials. This split head mandrel is designed for use with strips of abrasive material or non-woven surface conditioning material, which can be slipped into and secured within the slot. Ideal for finishing internal holes, sanding, or polishing bores, this mandrel is compatible with 1/8" collet rotary tools and drills that accept 1/8" shank accessories, offering convenience and flexibility in usage. With a 4" overall length, the mandrel provides extended reach, enabling access to challenging areas for versatile application in various tasks. Crafted from Hardened Carbon Steel, this mandrel boasts durability, strength, and longevity, ensuring robustness throughout prolonged use. Whether you're a professional tradesperson or a DIY enthusiast, the Pro-Graad 1/8" Shank 4” Overall Length Slotted Mandrel enhances your tooling setup, providing reliable performance and efficiency in sanding and finishing applications.


Toby b.
2025-06-22 12:48:46
I like the product it worked perfectly. I use it to sand and buff the inside of hollow mortising chisels
Kenzi falk
2025-01-19 14:39:20
This is a simple tool that works great. I have been using it to remove rust from the bore of some old mortising chisels. I mounted the mandrel in a drill press and used small pieces of sanding cloth as the abrasive. It did a good job of removing the rust and cleaning the bore of the item. I came in a protective case that will keep it from getting corrosion or dirty when not being used. The price is reasonable considering it is good steel with a little machining. I would order it again.