Package Included -- 1 x Metric 60 degree & America SAE Type & British Whitworth 55 degree (58 Blades) Measuring Range -- Measuring Range -- 58 Pieces (metric/inch): metric total of 24 tablets, according to the number of pitches per piece, said pitch 0.25-6 mm(0.25/0.3/0.35/0.4/0.45/0.5/0.6/0.7/0.75/0.8/0.9/1.0/1.25/1.5/1.75/2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.00) . Inch total of 28 tablets, 4-62(4/4.5/5/6/7/8/9/10/11/12/13/14/16/18/19/20/22/24/25/26/30/28/32/36/40/48/60/62), America type total of 6 tablets, Pitch count is: 8-28(8/10/11/14/19/28). Material -- Screw gauge tool set is made of stainless steel and processed with chrome finish. Surface polished smooth, applying anti-rust oil to prevent rust.good resilience, elegant appearance. Clear Identify -- There is a small hole at both ends, which is convenient for adjustment and disassembly with screws. You can easily rotate the thread pitch gauge blade where you press the tooth thread gauge. The numbers are clearly marked and easy to read. Widely Use -- Accurately measures internal and external screw threads with thread blades of varied size; Use to provide the correct size drill bit, or to size fastener to determine what bit should to use. Used for checking tool angle while cutting threads in metal turning lathes, accurately measures internal and external screw threads with thread blades of varied size. Specifications:

Material: stainless steel
Measuring rang:
51 Pieces 60°US
mm
4/4.5/5/5.5/6/7/8/9/10/11/11.5/12/13/14/15/16/18/20/22/24/26/27/28/30/32/34/36/38/40/42/44/46/48/50/52/54/56/58/60/62/64/66/68/70/72/74/76/78/80/82/84

52 Pieces metric/inch: metric total of 24 tablets, according to the number of pitches per piece, said pitch 0.25-6 mm, pitch count is:
0.25/0.3/0.35/0.4/0.45/0.5/0.6/0.7/0.75/0.8/0.9/1.0/1.25/1.5/1.75/2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.00

58 Pieces metric/inch/America: 60°metric:
0.25/0.3/0.35/0.4/0.45/0.5/0.6/0.7/0.75/0.8/0.9/1.0/1.25/1.5/1.75/2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.0
55°Inch: 4G, 4-1/2G, 5G, 6G, 7G, 8G, 9G, 10G, 11G, 12G, 13G, 14G, 16G, 18G, 19G, 20G, 22G, 24G, 25G, 26G, 28G, 30G, 32G, 36G, 40G, 48G, 60G, 62G
America: 8 10 11 14 19 28

Type:
America (51 pieces):60 x 60 mm/ 2.36 x 2.36 inch
Metric inch (52 pieces): 67 x 20 mm/ 2.63 x 0.78 inch
Metric inch America (58 pieces): 67 x 20 mm/ 2.63 x 0.78 inch
Features:

Good quality: all the thread pitch gauge are made of stainless steel.
Easy to use: designed with a hole on each end, use screw for easy adjust and disassemble, from where you press the tooth gauge, you can easily rotate the thread blades, numbers are stamped clear for reading.

Package include:

1 x Metric 60 degree & America SAE Type & British Whitworth 55 degree (58 Blades);