Perform heavy duty knurling with a CNC lathe to create a grip. These tools use knurls with smooth, rounded edges to press patterns into your material. Knurls are not included, except for internal knurling tools. Right-hand holders move from right to left toward the lathe chuck, and left-hand holders move from left to right away from the lathe chuck. Neutral holders cut in either direction.

Tools for two knurling wheels press more consistent patterns into your material than single-wheel tools, which can push your material off-center. You can also create diamond patterns—common for tool handles, knobs, and fasteners—in one pass rather than two. To do this, just pair a right- and left-hand spiral knurl when you machine your material.

Use internal knurling tools on the inside of holes and bores to reduce slippage between parts. They also improve adhesive bonding by creating more surface area as compared to a smooth surface.

Knurl material without straining your lathe. Also known as straddle-type knurling tools, these tools pinch both sides of your workpiece to balance out knurling pressure rather than transfer it to your spindle. Use them on soft materials to form patterns into your workpiece for a better grip. A left- and right-hand spiral knurl comes installed, so you can form a diamond pattern—common for tool handles—in one go. When you need to replace a knurl, switch it out without removing the tool from the machine. These tools can be flipped to be used in either a right-hand or left-hand orientation. Right-hand holders move from right to left toward the lathe chuck; left-hand holders move from left to right away from the lathe chuck.

Teeth per inch (TPI) determines how fine your pattern is. 21 TPI will create a coarse diamond pattern suitable for tool handles around 3/4" in diameter.

Press a grip into your workpiece using your manual lathe. These tools use knurls with smooth, rounded teeth to form grooves on your material. Upon contact with your material, the tool head adjusts to center the knurls for a consistent pattern. Use left and right-hand spiral knurls together to create a diamond pattern—common for tool handles—in one go. When your knurls wear out, you can pop them out and replace them. You can also swap the included spiral knurls for straight ones.

Swivel bump knurling tools have three sets of knurls that you can rotate between: coarse, medium, and fine pitch.

Knurl steel and stainless steel without a lathe. Form knurling presses grooved patterns into a workpiece to improve the grip. Use left- and right-hand spiral knurls together to create a diamond pattern.

Internal knurling tools improve the grip of the inside of a hole, helping inserted parts stay in place and adhesives stick better.

Teeth per inch (TPI) determines how fine your pattern is. The higher the number, the smoother, more closely spaced your pattern will be. A tool handle is usually knurled with 30 TPI. A heavy duty handle is usually knurled with 15 TPI, resulting in a coarse grip that requires gloves.

Install these knurls in a hand knurling tool to create grooved patterns on steel and stainless steel without using a lathe.

Use left-hand and right-hand spiral knurl sets to create a diamond pattern.

Cut down on setup time for heavy duty knurling with this system of tools and holders. Each holder accepts multiple tools, so you can install the holder on your lathe once, then swap out the tool to switch tasks. Knurls are included with each tool. They’re made of heat-treated, high-speed tool steel for strength and shock resistance. A titanium nitride coating prevents wear.

Tools for cutting have knurls with sharp teeth that remove material. They’re used to create deeper, more precise patterns than forming tools, especially on harder materials. Tools for forming have knurls with smooth, rounded teeth that displace material on the surface of your workpiece. They’re best for creating shallow patterns on soft materials.

Angled tools position straight-patterned knurls at an angle to create a diamond pattern on the workpiece. Bump tools press against the side of the workpiece to align it with your lathe. They’re good for narrow knurling applications. Straddle tools clamp the workpiece from both sides, so the knurling pressure is absorbed by the tool rather than your lathe spindle. Shoulder tools provide additional clearance to knurl all the way up to the workpiece shoulder.

Teeth per inch (TPI) determines how fine your pattern is. The higher the number, the smoother, more closely spaced your pattern will be. A tool handle is usually knurled with 30 TPI.

Press uniform, high-precision knurls into parts with minimal pressure. These tools are good for small-diameter or long parts because they use less pressure than one- and two-wheel knurling tools, which can bend the part. The adjustable scroll gear supports a range of workpiece diameters. The knurls have smooth, rounded teeth. They distribute pressure evenly to maintain quality and efficiency—even in high-volume production runs. Use them in CNC lathes, turret lathes, and automatic screw machines. Pair them with a holder (sold separately) to fit your lathe.

Teeth per inch (TPI) determines how fine your pattern is. The higher the number, the smoother, more closely spaced your pattern will be. A tool handle is usually knurled with 30 TPI.