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Pitbull Clamp Inch Instructions
Pitbull Clamp Metric Instructions

Pitbull® Clamps

Measurements Available: Inch, Metric

Pitbull® Clamps

The revolutionary Pitbull® Clamp remains the lowest profile, highest holding force clamp in the industry today. High vertical and horizontal clamping forces are generated, considering the size of the Pitbull® Clamps.

It uses a standard cap screw and an oil resistant O-ring. The Pitbull® Clamp is available in 5 sizes and several styles, a tool steel knife edge for aggressive stock removal, a tool steel blunt edge for general purpose, a brass version to help prevent marring the workpiece and a machinable version.

Also available is the Pitbull® Wear Plate. This shim provides a hard barrier between Pitbull® Clamp and fixture, preventing distortion of back wall when using aluminum or mild steel fixtures. Simple solution to keep fixtures light, maintain full clamp travel and holding forces at max pressure. Refurbish old fixtures or add to existing aluminum fixtures to maximize machining capabilities.

Unique Features of Pitbull® Clamps
Extremely low bite Positive down force High resistance to rip-out Simple, sturdy, high quality design and components Gain maximum tool access to your work Virtually eliminate lost work Great option with hydraulic Tungsten Carbide coating can be added to increase holding force		Courtesy of Straitline Components

Creating Fixtures is Easy. . . Simply:

Machine a slot for the Pitbull® Clamp.
Drill and tap a hole for the cap screw.
Assemble the clamp as shown in the diagram.
Position clamp as shown in diagram and loosely screw to fixture.
Insert workpiece and tighten cap screw.

PATENT NO. 6435496
replacement-o-screw

Inch

Part No.		Description	A	B	Clamp Width C	D*	E	SHCS Screw Size	Max Torque (ft/lbs)	Holding Force (lbs.)	Total Throw	No. Clamps Per Package
26000	CAD	Tool Steel, Knife Edge	.150	.140	.375	.075	.260	4-40	1.30	650	.0075	8
26010	CAD	Tool Steel, Blunt Edge	.150	.140	.375	.075	.260	4-40	1.30	650	.0075	8
26015	CAD	Brass, Blunt Edge	.150	.140	.375	.075	.220	4-40	.41	200	.0075	8
26020	CAD	Tool Steel, Knife Edge	.200	.187	.500	.100	.390	8-32	3.70	1500	.016	8
26030	CAD	Tool Steel, Blunt Edge	.200	.187	.500	.100	.390	8-32	3.70	1500	.016	8
26040	CAD	Brass, Blunt Edge	.200	.187	.500	.100	.340	8-32	2.00	400	.016	8
26050	CAD	Tool Steel, Knife Edge	.300	.280	.750	.150	.570	1/4-20	14.50	3600	.024	6
26060	CAD	Tool Steel, Blunt Edge	.300	.280	.750	.150	.570	1/4-20	14.50	3600	.024	6
26065	CAD	Brass, Blunt Edge	.300	.280	.750	.150	.440	1/4-20	4.10	950	.024	6
26070	CAD	Tool Steel, Knife Edge	.400	.450	1.00	.250	.710	3/8-16	30.00	6000	.050	4
26075	CAD	Tool Steel, Blunt Edge	.400	.450	1.00	.250	.710	3/8-16	30.00	6000	.050	4
26080	CAD	Tool Steel, Knife Edge	.600	.640	1.50	.375	.770	1/2-13	108.30	12000	.075	2
26085	CAD	Tool Steel, Blunt Edge	.600	.640	1.50	.375	.770	1/2-13	108.30	12000	.075	2

* D is clamp height.

Metric

Part No.		Description	A	B	Clamp Width C	D*	E	SHCS Screw Size	Max Torque (N.m.)	Holding Force (N.)	Total Throw	No. Clamps Per Package
56000	CAD	Tool Steel, Knife Edge	3.81	3.55	9.52	1.90	6.60	M2.5	1.8	2800	.190	8
56010	CAD	Tool Steel, Blunt Edge	3.81	3.55	9.52	1.90	6.60	M2.5	1.8	2800	.190	8
56015	CAD	Brass, Blunt Edge	3.81	3.55	9.52	1.90	5.59	M2.5	.56	875	.190	8
56020	CAD	Tool Steel, Knife Edge	5.08	4.75	12.70	2.54	9.90	M4	5.6	6600	.406	8
56030	CAD	Tool Steel, Blunt Edge	5.08	4.75	12.70	2.54	9.90	M4	5.6	6600	.406	8
56040	CAD	Brass, Blunt Edge	5.08	4.75	12.70	2.54	8.64	M4	2.8	1750	.406	8
56050	CAD	Tool Steel, Knife Edge	7.62	7.11	19.05	3.81	14.48	M6	22.5	16000	.610	6
56060	CAD	Tool Steel, Blunt Edge	7.62	7.11	19.05	3.81	14.48	M6	22.5	16000	.610	6
56065	CAD	Brass, Blunt Edge	7.62	7.11	19.05	3.81	11.18	M6	5.6	4200	.610	6
56070	CAD	Tool Steel, Knife Edge	10.16	11.43	25.4	6.35	18.03	M10	40.6	26000	1.270	4
56075	CAD	Tool Steel, Blunt Edge	10.16	11.43	25.4	6.35	18.03	M10	40.6	26000	1.270	4
56080	CAD	Tool Steel, Knife Edge	15.24	16.26	38.1	9.52	19.56	M12	145.0	50000	1.900	2
56085	CAD	Tool Steel, Blunt Edge	15.24	16.26	38.1	9.52	19.56	M12	145.0	50000	1.900	2

* D is clamp height.

Knife Edge

Blunt Edge

Both versions of the tool steel clamps generate the same clamping pressure. However, the knife edge clamps bite into the material for more aggressive machining, while the blunt edge is less likely to mark the workpiece.

Fixture Examples
	Using a steel rail behind clamp in aluminum fixtures when applying maximum torque prevents displacing metal at pivot point.

Applications

: Image courtesy of Pete Denness

: Image courtesy of Justin Lowe

: Image courtesy of Justin Lowe

: Image courtesy of Charles Ebenezer Eastman Sanborn IV

: Image courtesy of @grayopscnc

: Image courtesy of m95machining

: Ken Robertson -MiteeBite Products Facebook Community – I used them on a pallet recently. Wanted something narrower so I’d have more meat for the pitbull clamps. Worked excellent here.

: @hanes_spanntechnik

: @hanse_spanntechnik

: @gibblespeed_ – I’m digging the #miteebite setup.

: @gibblespeed_ – I’m digging the #miteebite setup.

: @spartanmachinellc – Wow I love these @miteebite #pitbullclamps we had to face down even longer plates this week. So I expanded my original fixture design, and got a @iscarcuttingtools HELIALU cutter and shredded the material. Perfect flatness and a gorgeous finish!

: Peter Stokes – Mitee-Bite Facebook Community – My latest mitee bite fixture. All three have removable top plates located with 4 Mitee Bite ID clamps while operator reloads another set of identical top plates while machine continues to run. 60 complete parts in 2.5 hrs(can speed up the program a bit) with 4 total operations on each part. Fun to design and make.

: Peter Stokes – Mitee-Bite Facebook Community – My latest mitee bite fixture. All three have removable top plates located with 4 Mitee Bite ID clamps while operator reloads another set of identical top plates while machine continues to run. 60 complete parts in 2.5 hrs(can speed up the program a bit) with 4 total operations on each part. Fun to design and make.

: Image courtesy of @jack_vanderpols.

: Image courtesy of @sultans_of_steel. “I finally got around to making a PitBull fixture by @miteebite it worked perfectly! I had been trying to face down these alum plates to within .001 thickness, but it Was proving impossible just holding it with vises. So It became the perfect opportunity to try these out! I am only bummed I haven’t used them sooner! “

: Image courtesy of @sultans_of_steel. “I finally got around to making a PitBull fixture by @miteebite it worked perfectly! I had been trying to face down these alum plates to within .001 thickness, but it Was proving impossible just holding it with vises. So It became the perfect opportunity to try these out! I am only bummed I haven’t used them sooner!”