1st Edition Fastener Black Book 6571112 Showa Mt4-A1 55-200S Showa 50-55mm

Showa Mt4-A1 55-200S Showa 50-55mm Dia Drill Set

Switching Segments - 84

t15 x 100mm

25 x 50 Metric Coarse Hex Set Screws 25 Pieces Zinc Plated Class 8

Drill diameter 31mm

1st Edition Fastener Black Book 6571112 Showa Mt4-A1 55-200S Showa 50-55mmThe ultimate fastener reference book! Ideal for engineers, trades people, apprentices, machine shops & tool rooms. Includes a bonus thread pitch identification gauge. Pocket sized format makes this book an ideal reference in any tool kit Lay flat format with wire binding for ease of use on workbench Over 240 matt laminated grease proof pages What's inside: Screw thread fundamentals Standards Heat treatment Thread classes Grades Materials & coatings