Catheter Punches

SYNEO manufactures precision cutting tools with unparalleled sharpness for drilling holes, punching holes, and skiving holes in catheter tubing. SYNEO’s cutting tools utilize SYNEO’s proprietary Hollow Core Sharpening Technology to create flash-free, burr-free holes in flexible tubing applications as small as .006” SYNEO offers a variety of manual and automated equipment solutions that utilize SYNEO cutting tools.

Precision hole configurations in single or multi-lumen catheter tubing are utilized for a variety of purposes including drug delivery, drainage, and flow-control.

SYNEO works closely with customers to evaluate hole making and skiving applications to determine the best cutting tool to achieve device hole specifications. SYNEO will analyze the optimum blade raw material, tip style, dimensions, coating, and recommend catheter punches or coring blades to achieve the best hole quality and durability for each hole application.

SYNEO’s cutting tool products create optimal hole and skive configurations for tubing applications and remain the most economically viable mechanical hole making solution available. SYNEO’s cutting tools utilize SYNEO’s proprietary hollow core sharpening technology to create flash-free, burr-free holes in catheter hole drilling and tubing applications.

Precision hole configurations in single or multi-lumen catheter tubing are utilized for a variety of purposes including drug delivery, drainage, and flow-control.

Punch Geometry

SYNEO is capable of manufacturing punching and coring blades in a variety of shapes depending on your specific application. Some of the common shape options include:

Round
Oval
Formed
Custom Geometry (i.e. Triangle, rectangle, diamond, etc.)

Tip Styles

All holes are not created equally, and the style of cutting edge directly impacts the taped and shape of the resulting hole. SYNEO’s sharpening process provides for three cutting tip profiles: Outside, Middle, and Inside.

OUTSIDE CUTTING EDGE

The outside edge has a straight outside diameter and a taper on the inside bore diameter, which yields a cutting edge at the outside diameter of the punch.

MIDDLE CUTTING EDGE

The middle edge is achieved by tapering the outside and inside diameter which yields a cutting edge approximately in the middle of the punch wall.

INSIDE CUTTING EDGE

The inside edge has a straight inside bore diameter and a taper on the outside diameter, which yields a cutting edge at the inside diameter of the punch.

Product Series By Material

C-Series | 304 stainless steel

C-Series hard temper, stainless steel punches are a cost-effective choice when applications require extremely sharp edges or resultant holes as small as 0.006” (0.15mm) in diameter. This series is available in a wide range of gauge sizes and can be further modified to yield different inside diameters, wall thicknesses and tip configurations. When application requirements are more demanding, the addition of a titanium nitride (TiN) coating increases durability and lubricity to the C-Series cutters.

B-Series | engineered metal

Combining highly engineered materials with precision manufacturing processes results in a robust line of cutters for braided catheter tubing applications. The B-series punches are available in a limited number of standard diameters or can be manufactured to meet specific requirements.

H-Series | 17-4 stainless steel

H-Series punches are furnace-hardened for maximum durability. This iron-chromium-nickel alloy couples high corrosion resistance with heat-treat capability for high strength. H-Series offer the best balance between cost and durability for automated punching, drilling and skiving applications with hole sizes greater than 0.020” (0.5mm).

T-Series | 465 stainless steel

Like the H-Series, these punches are furnace-hardened for maximum durability. These application-specific punches combine high strength, superior wear resistance and size availability to make them the practical choice for high-volume production or demanding applications.

Cutting Edge Coatings

Titanium Nitride (TiN)

Titanium Nitride is the most common coating recommended in tubing punch applications. TiN coating bonds molecularly with the metal surface to prevent blistering, flaking or chipping while substantially reducing friction and increasing material hardness for increased tool life.

TiN is particularly well-suited for razor-sharp SYNEO cutting edges because the micro-thin coating (two to three microns or .001 inches) adds toughness and durability without compromising cutting edge sharpness.

TiN coating:

typically extends tool life five to seven times beyond a non-coated cutting tool
will not corrode, blister, flake or chip
will not leave residue
is non-toxic and FDA-compliant for use in medical instruments

Featured Catheter Manufacturing Cutting Tool Applications

Drainage Catheters
Heart Diagnostic Catheters
Neuro Diagnostic Catheter
Injection-Molded Duckbill Components
Odd-Form Respiratory Devices

Standard Punch List

Nominal Cutting Edge (in)	Nominal Cutting Edge (mm)	Material	Shape	OD(in)	ID(in)	Length	Coating	Shaft	Wall	Tip Style	Part Number
0.006	0.18	304SS	Round	.009	.005	1.500	TiN	32	Regular	Middle	CR0090055N32R4
0.011	0.28	304SS	Round	.014	.009	1.500	TiN	28	Custom	Middle	CR0140095N28R4
0.012	0.30	304SS	Round	.016	.010	1.500	TiN	27	Custom	Middle	CR0160105N27R4
0.016	0.41	304SS	Round	.020	.013	1.000	TiN	25	Custom	Middle	CR0200131N25T4
0.017	0.43	304SS	Round	.022	.014	1.500	TiN	24	Custom	Middle	CR0220145N24R4
0.022	0.56	304SS	Round	.028	.018	1.500	TiN	22	Custom	Middle	CR0280185N22R4
0.024	0.61	304SS	Round	.028	.021	1.500	TiN	22	Custom	Middle	CR0280215N22T4
0.026	0.66	304SS	Round	.032	.022	1.500	TiN	21	Custom	Middle	CR0320225N21R4
0.027	0.69	304SS	Round	.032	.023	1.500	TiN	21	Custom	Middle	CR0320235N21R4
0.029	0.74	304SS	Round	.035	.025	1.500	TiN	20	Custom	Middle	CR0350255N20R4
0.030	0.76	304SS	Round	.035	.027	1.500	TiN	20	Custom	Middle	CR0350275N20R4
0.034	0.86	304SS	Round	.042	.029	1.500	TiN	19	Custom	Middle	CR0420295N19R4
0.034	0.86	304SS	Round	.042	.029	1.000	TiN	19	Custom	Middle	CR0420291N19R4
0.035	0.89	304SS	Round	.042	.031	1.500	TiN	19	Custom	Middle	CR0420315N19R4
0.036	0.91	304SS	Round	.042	.032	1.500	TiN	19	Custom	Middle	CR0420325N19R4
0.036	0.91	304SS	Round	.042	.032	1.000	TiN	19	Custom	Middle	CR0420321N19R4
0.037	0.94	304SS	Round	.042	.033	1.500	TiN	19	Custom	Middle	CR0420335N19R4
0.037	0.94	304SS	Round	.042	.033	1.000	TiN	19	Custom	Middle	CR0420331N19R4
0.041	1.04	304SS	Round	.050	.035	1.500	TiN	18	Custom	Middle	CR0500355N18R4
0.042	1.07	304SS	Round	.050	.036	1.500	TiN	18	Custom	Middle	CR0500365N18R4
0.042	1.07	304SS	Round	.050	.037	1.000	TiN	18	Custom	Middle	CR0500371N18R4
0.043	1.09	304SS	Round	.050	.038	1.500	TiN	18	Custom	Middle	CR0500385N18R4
0.043	1.09	304SS	Round	.050	.038	1.000	TiN	18	Custom	Middle	CR0500381N18R4
0.045	1.14	304SS	Round	.050	.042	1.500	TiN	18	Custom	Middle	CR0500425N18R4
0.045	1.14	304SS	Round	.050	.041	1.000	TiN	18	Custom	Middle	CR0500411N18R4
0.050	1.27	304SS	Round	.058	.044	1.500	TiN	17	Custom	Middle	CR0580445N17R4
0.051	1.30	304SS	Round	.058	.047	1.500	TiN	17	Custom	Middle	CR0580475N17R4
0.055	1.40	304SS	Round	.065	.049	1.500	TiN	16	Custom	Middle	CR0650495N16R4
0.055	1.40	304SS	Round	.065	.049	1.000	TiN	16	Custom	Middle	CR0650491N16R4
0.062	1.57	304SS	Round	.072	.055	1.500	TiN	15	Regular	Middle	CR0720555N15R4
0.065	1.65	304SS	Round	.072	.060	1.500	TiN	15	Regular	Middle	CR0720605N15R4
0.072	1.83	304SS	Round	.083	.065	1.500	TiN	14	Regular	Middle	CR0830655N14R4
0.075	1.91	304SS	Round	.083	.070	1.500	TiN	14	Regular	Middle	CR0830705N14R4
0.079	2.01	304SS	Round	.089	.073	1.500	TiN	13	Regular	Middle	CR0890735N1354
0.084	2.13	304SS	Round	.095	.076	1.500	TiN	13	Regular	Middle	CR0950765N13R4
0.085	2.16	304SS	Round	.095	.078	1.500	TiN	13	Regular	Middle	CR0950785N13R4
0.096	2.44	304SS	Round	.109	.087	1.500	TiN	12	Regular	Middle	CR1090875N12R4
0.104	2.64	304SS	Round	.120	.094	1.500	TiN	11	Regular	Middle	CR1200945N11R1
0.117	2.97	304SS	Round	.134	.106	1.500	TiN	10	Regular	Middle	CR1341065N10R1
0.125	3.18	17-4	Round	.125	.113	1.500	None	1/8 in Shank	N/A	Outside	HS1251135P1183
0.187	4.75	17-4	Round	.187	.173	0.812	None	1/8 in Shank	N/A	Outside	HS1871730P1183S
0.375	9.53	17-4	Round	.375	.348	0.812	TiN	1/8 in Shank	N/A	Outside	HS3753480P1183S
0.500	12.70	17-4	Round	.5	.410	1.000	TiN	1/8 in Shank	N/A	Outside	HS5004101P1183