Drill sharpening

Step 1: Lets get started

Choose the collet by placing tool inside it

Wipe collet seating area clean with finger

Install collet into clamp ring

Install clamp ring onto spindle leaving it loose so tool can slip in easily for set up

Step 2: : Centre height set up

Insert the tool into collet approximately 30mm deep and lock clamp ring using C spanner

Release spindle lock and rotate spindle till zero marks line up, hold spindle against clicker device and lock spindle

With the tool edge resting on height rest use C spanner and tighten clamp ring

Wheel choice is important in this case the cup wheel will be used for both end mill and slot drill sharpening

Step 3: Grinding wheel change

Remove and place wheel guard to one side by undoing securing screw with a 5mm allen key

Change grinding wheel by placing spanner onto spindle and rotate wheel anti-

clockwise by hand

Whilst working around tools beware of sharp edges. Place a rag over tool to prevent cuts, oops !!

Tighten the clamp ring by hand using the C spanner

Step 4: Work holding device

Both tool and wheel must be the same centre height as rest locator. Adjust

accordingly

Undo lock handles 1 and 2 and tilt head to +6 degrees and retighten lock handles

Undo swivel base locking screw on right hand and reset base to zero degrees + 20

minutes relock again

Ensure cross slide setting is at zero if not use small front handle to correct

zero position

Step 5: Sharpen the tool

Grind all four primary edges at + 6 degrees to achieve a band width of 1mm

Undo clamp levers 1 and 2 again and tilt head to + 12 degrees and relock clamp

levers

Grind all four secondary edges at + 12 degrees to achieve a band width of 0,5 mm

to 0,8 mm

Inspect the tool if OK, then undo clamp ring by using Cee spanner and tap gently

as tool will pop out.

Tool inspection time

1. Inspect the primary angle to meet required measurements of 0.5 mm to 0.8 mm using either a

150 mm steel rule or a Vernier

2. Tooling may be removed to measure more accurately due to poor ergonomics.

3. If measuring in the current set-up adjust the over head light to give

better vision if require

4. Always be very careful of sharp edges on the tool as you move your hands and

limbs around whilst checking and inspecting dimensions on tools.