UJK Parf Guide Mark II drill bits info

[Wood_Slice]

Just wanted to post it out there in case anyone was wondering the size of the 3 mm drill bit. The length of the bit is longer than needed. I believe the common 60-62mm overall length might work fine for 3/4” material thickness.

The OG bit has the following writing on it

@3.0  GUHRING  HSS  19479371

The @ icon is a zero with a diagonal line representing mm i guess

• Measured with a caliper and its dead on 3.0 mm diameter (imperial with caliper was 15/128”)
• Overall length is 72 mm
• Cutting flutes 40 mm length
• Shaft 32 mm in length
• Looks like 118 or 135 degree
• HSS= high speed steel
• GUHRING is the manufacturer brand
• 19479371 is the item number identifying it (could not find it on their website or anywhere else)

SIDE NOTE- dogs that come with the parf guide mark 2 are

• Overall height 22 mm
  
• Bottom diamter 19.95 mm
• top diameter 24.95mm
• top height 10 mm
• Bottom height 12 mm

 

[Mike Goetzke]

"O" with diagonal through it usually represents diameter.

I'm pretty sure you can get spares for the Parf from TSO & Axminster.