What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Usually, you cannot safely add a true riving knife to an older table saw that was not designed for one. A riving knife must stay closely aligned with the blade and rise or lower with the blade assembly. The exceptions are model-specific conversion kits engineered for a particular saw. Check your exact model and its manual before buying anything; if no supported knife retrofit exists, a compatible splitter may be an option for some cuts, but it is a different device.
What makes a riving knife different from a splitter?
Both devices sit behind the blade in the kerf and help keep a cut from closing onto the rear teeth. Their mounting and movement differ. The U.S. Consumer Product Safety Commission staff’s 2019 table-saw update defines a splitter as a plate aligned behind the blade that does not move up and down with the arbor. It describes a riving knife as a curved plate attached to the arbor assembly, generally closer to the blade and no higher than the blade top, that rises and lowers with the blade. The document is staff material and is marked as not reviewed or accepted by the Commission.
| Device | How it moves | Practical implication |
|---|---|---|
| Riving knife | Moves with the blade assembly as blade height changes. | Its close relationship to the blade can allow it to remain in place for some non-through cuts, but only where the saw and knife manuals permit. |
| Splitter | Usually stays fixed relative to blade height. | Its distance from the blade can vary as blade height changes; it may need to be removed for dado or rabbet cuts. |
Neither name alone establishes compatibility. The saw’s mounting, blade kerf, throat plate, clearance, and the intended cut all matter.
Why a retrofit is usually not practical
A true riving knife has to track the blade closely through height adjustment. Many older saws move the blade in an arc and were built without a mounting structure that coordinates a knife with that motion. A fixed plate’s distance from the blade can change as the blade rises or lowers; attaching a knife to an unprepared saw does not solve that alignment problem. Grizzly Support explains that retrofitting such a saw may require substantial internal redesign, so an improvised mount is not a safe substitute for an engineered conversion.
#1 Best Overall
- Valued Carpenter Pencil Set: You will get 2 pcs solid carpenter pencils with 26 piece 2.8 mm refills, 1 replaceable sharpener, 1 plastic storage box.The complete carpenter pencils combination allows you to finish your work faster and more easily
- Deep Hole Marker Pencil: The deep-hole construction pencils adopts 45mm elongated tip design, which is more convenient to mark in the small hole or in other tight areas that other carpenter markers cannot reach
- Carpenter Pencils with Sharpener: The sharpener is screwed into the top of the work pencil, which won't get lost either. Built-in pencil sharpener that keep the lead with pointed and smooth to Improves line of sight in fine work
- Stronger Solid Lead: This work pencil is matched with a 2.8 mm thick lead , which is much thicker and stronger during the drawing process of construction work, it will not break or damage easily
- Marks on Various Surfaces: 3 colors solid construction pencil can marks on various surfaces,such as metal, plastic, wood, paper etc. Ideals for woodworkers, contractors, craftsmen, builders, merchants and masons
When a true riving-knife retrofit may work
A conversion is a possibility only when it is engineered for the exact saw model and configuration. The General 650RNK conversion-kit manual, for example, describes a kit for the specified General 650 3HP saw and warns not to fit it to another model. This is evidence of a model-specific exception, not confirmation that the kit is currently available. Contact the manufacturer or an authorized specialist to verify current parts, support, and the precise production version before proceeding.
How to check your saw before buying a device
- Identify the exact saw. Record the make, full model number, and production version if applicable. A brand name alone is not enough to establish fit.
- Check the owner’s manual. Determine whether the saw was designed for a riving knife, splitter, or guard assembly, and follow the specified mounting and adjustment procedure.
- Ask about an approved replacement or conversion. Confirm with the saw maker or a qualified specialist that the part is intended for that exact model. Do not assume a similar-looking saw uses the same mounting.
- Verify the complete setup. Confirm mounting, blade kerf versus device thickness, alignment, throat-plate clearance, and which cuts are permitted. Also check whether the blade guard and anti-kickback pawls remain usable as directed by the saw manual.
- Do not install or operate an unverified device. If compatibility or clearance cannot be established, stop and seek model-specific guidance rather than fabricating a mount or forcing a part to fit.
If a true knife is not available: consider a compatible splitter
A splitter can be a separate option for some through-cut setups; it does not become a riving knife simply because it sits in the kerf. For instance, MICROJIG’s MJ SPLITTER full-kerf product page specifies use with 1/8-inch kerf blades, gives a kerf range of 0.118–0.145 inches, offers reversible offsets, and limits stated use to 90-degree through-cuts. Those specifications should not be applied to other MICROJIG variants or to a saw without confirming fit. Consult the relevant MICROJIG splitter manuals and the saw manual for installation and cut limits.
Rank #2
- Ergonomically Designed: Work in tight areas with a compact design that gets into tough spots
- Compact and Lightweight: Both tools are designed to fit into difficult to reach spaces. The 1/4" impact driver has a length of 5.55 in. and weighs just 2.8 lbs, while the 1/2" drill/driver measures only 7.5 in. and weighs 3.6 lbs
- Both the DEWALT impact driver and electric drill driver feature integrated LED work lights with a convenient 20-second delay, ensuring enhanced visibility in dimly lit or challenging work areas
- One-Handed Loading - Keep one hand free with a 1/4 in. hex chuck that accepts 1 in. bit tips
- Power drill cordless with 1/2" single sleeve ratcheting chuck provides tight bit gripping strength, making bit changes faster and more secure
Shark Guard lists model-specific splitters, manually adjustable riving knives, and guard packages. Its riving knives and splitters information notes that some saws can use only fixed-height splitters, requires the knife or splitter to be thinner than the blade kerf, and identifies mounting-bracket or throat-plate limitations for some packages. Its Delta ARK package lists compatible models but warns it is not suitable for every saw. Give the vendor your exact model and confirm fit, installation, and supported cuts before purchasing.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Use the saw’s safety equipment as designed
Do not remove a splitter or guard except as directed for the specific operation in the saw manual, and restore the required equipment afterward. CPSC staff stated in its September 14, 2011 advance notice that “A properly installed riving knife may be the most effective way to prevent kickback because it limits workpiece access to the rear teeth of the saw blade.” That statement appears in staff material marked as not reviewed or accepted by the Commission; it is not a final Commission finding. It reinforces the importance of correct installation, not the safety of an improvised retrofit.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Quick Recap
Best Value
- Milwaukee Ink all Fine Point Marker, Black, 4 Per Pack
- 4 per pack Features Clog Resistant Marker Tip Writes through Dusty, Wet and Oily Surfaces Durable Marker Tip for Writing on Concrete, OSB and Rough Surfaces
- Clog resistant tip writes on dusty, wet and oily surfaces and is optimized for rough surfaces such as OSB, cinderblock and concrete
- Hard hat clip- attaches for easy access
- Quick dry time with reduced smearing and marking
Rank #4
- Long Nib and Deep Hole Marker: Our mechanical carpenter pencil with 45mm nib is designed for easy marking of deep holes or narrow areas. These construction pencils are the great choice for woodworking tools, construction tools, carpenter tools, contractor tools, wood carpentry tools and architect tools
- Extra Refills in 2 Colors for Versatile Marking: The construction mechanical pencil comes with 12 extra 2.8mm refills, including 6 red and 6 black refills. The black refill is suitable for light surfaces, while the red wax is perfect for dark surfaces. Our carpenter mechanical pencil makes sure that you'll have an ample supply for extended use
- Built-in Sharpener: Our construction pencil comes with a built-in sharpener to ensure the mechanical pencil tip is always sharp and ready for use. Never buy an extra pencil sharpener again. A great tool for any woodworker pencil, contractor pencils. The refill can easily be extended or retracted with a simple click of the pencils mechanical, allowing you to work more efficiently and accurately
- Portable Clip Design: Our deep hole construction pencil features a portable clip design, easy to carry and attach to your pocket or tool box, so that you can keep the carpenter pencils mechanical close at hand, making it a convenient tool to have on the go. Great gifts choice for carpenters
- Stronger Pencil Lead: The black refills are made of lead, sturdy and smooth. The red refills are made of wax, clear and light. These marking pencils are much thicker and stronger than normal pencils during the marking process of construction work, suitable for various surfaces, such as glasses, metal, boards, floors, walls, furniture, etc. The written marks can be easily wiped with a wet paper towel when needed
Rank #3
- 【Great Compatibility】This Katerk 1/4 inch hex shank bit holder is specifically designed for 1/4 inch hex shank drill bits. It's compatible with most 1/4 fast hex handles, hex sockets, various electric screwdrivers, and handheld screwdrivers. The bit holder makes it a valuable addition for any handyman.
- 【Secure and Safe】Built with a secure backup nut design, each drill bit holder securely locks onto your bits, ensuring they stay firmly in place. Additionally, our bit holder incorporates a high-quality steel ball rolling design that holds up to several kilograms of weight, ensuring your various drill bits don't fall off.
- 【Easy One-Handed Operation】The bit holder for impact driver allows you to change bits single-handedly, simplifying your workflow. Its multi-color design further allows for quick identification of the drill bit you need.
- 【Compact and Convenient】Thanks to its compact size, this 1/4 inch bit holder is easy to carry around. The bit holder allows for easy attachment to various tools, making this a convenient addition to your construction accessories. The Katerk bit holder is cast from high-quality alloy material, promising a long product lifespan. Despite its rugged strength, the bit holder remains lightweight, making it portable.
- 【Cool Christmas Gift For Men Stocking Stuffers】 This screwdriver bit holder, driver bit holder, impact bit holder, can be given as a gift to your loved one, especially for anyone involved in construction or electrical work. It's a must-have for stocking stuffers for men and women, tools gifts for dad, tech gadgets for men, gifts for dad, gifts for him, gifts for husband, gifts for boyfriend, cool gadgets for men, and cool gifts for dad.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
