Proof load strength is 175

High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills

10 x 1 Simpson Pancake-Head Screw - Square Drive 410 SS - Carton (1000)

1 3/4-5 x 6 Socket Cap Screw Alloy

This combination of features makes the 1 1/2-6 Grade 2 finished hex nut zinc plated an excellent choice for reliable fastening needs

#1 x 6 High Speed Aircraft Bit Cobalt (6) 7/16-20 Hex Cap Screws 18-8 Stainless Steel Proof load strength is 175#1 x 6 High Speed Aircraft Bit Cobalt . Manufactured to NAS 907 Type J specifications Jobber flute lengths for drilling holes in hard to reach places Heavy duty construction for portable or machine drilling For use in drilling in high tensile strength alloy steels, stainless steels, titanium and other difficult to machine materials Made in the USA