E-48
Radius Gages
SERIES 186
Pitch Gages
SERIES 188, 950
FEATURES
• Radius size is stamped on each gage.
• Both concave and convex radius gages
become a pair.
• With a locking clamp.
FEATURES
• Thread pitch size is stamped on each gage.
• Metric, Unified, and Whitworth screw pitch
gages.
SPECIFICATIONS
Metric
Range Order No. Composition of leaves Remarks
0.4 - 6mm 186-110 18 leaves: 0.4, 0.8, 1, 1.2, 1.5, 1.6mm, 1.75 - 3mm by 0.25mm, 3.5 - 6mm by 0.5mm 90° arc
0.5 - 13mm 186-902 26 leaves: 0.5 - 13mm by 0.5mm 90° arc
1 - 7mm 186-105 34 pairs: 1 - 3mm by 0.25mm 3.5 - 7mm by 0.5mm 180° arc
7.5 - 15mm 186-106 32 pairs: 7.5 - 15mm by 0.5mm 180° arc
15.5 - 25mm 186-107 30 pairs: 15.5 - 20mm by 0.5mm, 21 - 25mm by 1mm 180° arc
Inch
Range Order No. Composition of leaves Remarks
1/32" - 17/64" 186-103 16 leaves: 1/32" - 17/64" by 64ths 90° arc
1/32" - 1/4" 186-101 15 pairs: 1/32" - 1/4" by 64ths 180° arc
17/64" - 1/2" 186-102 16 pairs: 17/64" - 1/2" by 64ths 180° arc
9/32" - 33/64" 186-104 16 leaves: 9/32" - 33/64" by 64ths 90° arc
186-105
186-110
188-101
SPECIFICATIONS
Metric Screw Pitch Gages (60˚)
Range Order No. Composition of leaves
0.25 - 2.5mm 188-153 28 leaves: 0.25, 0.30. 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.85, 0.90,
1.00, 1.10, 1.20, 1.25, 1.30, 1.40, 1.50, 1.60, 1.70, 1.75, 1.80, 1.90, 2.00. 2.50 mm
0.35 - 6mm 188-130 22 leaves: 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5,
6mm and 60° angle gage
0.4 - 7mm 188-122 21 leaves: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7mm
0.4 - 7mm 188-121 18 leaves: 0.4, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7mm
Unified Screw Pitch Gages (60˚)
Range Order No. Composition of leaves
4 - 42 TPI 188-111 30 leaves: 4, 4
1
/
2
, 5, 5
1
/
2
, 6, 7, 8, 9, 10, 11, 11
1
/
2
, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34,
36, 38, 40, 42 TPI
4 - 84 TPI 950-253
51 leaves: 4, 41/2, 5, 51/2, 6, 7, 8, 9, 10, 11, 111/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36,
38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84 TPI
Note: Metric and Unified Pitch Gage Set (188-151) is available. It consists of 188-122 (Metric) and 188-111 (Unified).
Whitworth Screw Pitch Gages (55˚)
Range Order No. Composition of leaves
4 - 42 TPI 188-101 30 leaves: 4, 4
1
/
2
, 5, 5
1
/
2
, 6, 7, 8, 9, 10, 11, 11
1
/
2
, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32,
34, 36, 38, 40, 42 TPI
4 - 60 TPI 188-102 28 leaves: 4, 4
1
/
2
, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 34, 36, 40,
48, 60 TPI
Metric and Unified Screw Pitch Gage Set (60˚)
Range Order No. Composition of leaves
0.4 - 7mm / 4 - 42 TPI 188-151 51 leaves: Set of 188-122 and 188-111
0.5 - 6mm / 4 - 56 TPI 188-152 28 leaves: 4, 6, 8, 10, 11, 11-1/2, 12, 13, 16, 20, 28, 32, 40, 56 TPI
0.50, 0.75, 1.00, 1.23, 1.50, 1.75, 2.00, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00. 6.00 mm